## Template Template is a YAML input file which defines all the requests and other metadata for a template.
id string
ID is the unique id for the template. #### Good IDs A good ID uniquely identifies what the requests in the template are doing. Let's say you have a template that identifies a git-config file on the webservers, a good name would be `git-config-exposure`. Another example name is `azure-apps-nxdomain-takeover`. Examples: ```yaml # ID Example id: CVE-2021-19520 ```

info model.Info
Info contains metadata information about the template. Examples: ```yaml info: name: Argument Injection in Ruby Dragonfly author: 0xspara tags: cve,cve2021,rce,ruby reference: https://zxsecurity.co.nz/research/argunment-injection-ruby-dragonfly/ severity: high ```

requests []http.Request
Requests contains the http request to make in the template. Examples: ```yaml requests: matchers: - type: word words: - '[core]' - type: dsl condition: and dsl: - '!contains(tolower(body), ''
dns []dns.Request
DNS contains the dns request to make in the template Examples: ```yaml dns: extractors: - type: regex regex: - ec2-[-\d]+\.compute[-\d]*\.amazonaws\.com - ec2-[-\d]+\.[\w\d\-]+\.compute[-\d]*\.amazonaws\.com name: '{{FQDN}}' type: CNAME class: inet retries: 2 recursion: true ```

file []file.Request
File contains the file request to make in the template Examples: ```yaml file: extractors: - type: regex regex: - amzn\.mws\.[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12} extensions: - all ```

network []network.Request
Network contains the network request to make in the template Examples: ```yaml network: host: - '{{Hostname}}' - '{{Hostname}}:2181' inputs: - data: "envi\r\nquit\r\n" read-size: 2048 matchers: - type: word words: - zookeeper.version ```

headless []headless.Request
Headless contains the headless request to make in the template.

Workflows is a list of workflows to execute for a template.

self-contained bool
Self Contained marks Requests for the template as self-contained

## model.Info Info contains metadata information about a template Appears in: - Template.info ```yaml name: Argument Injection in Ruby Dragonfly author: 0xspara tags: cve,cve2021,rce,ruby reference: https://zxsecurity.co.nz/research/argunment-injection-ruby-dragonfly/ severity: high ```
name string
Name should be good short summary that identifies what the template does. Examples: ```yaml name: bower.json file disclosure ``` ```yaml name: Nagios Default Credentials Check ```

Author of the template. Multiple values can also be specified separated by commas. Examples: ```yaml author: ```

Any tags for the template. Multiple values can also be specified separated by commas. Examples: ```yaml # Example tags tags: cve,cve2019,grafana,auth-bypass,dos ```

description string
Description of the template. You can go in-depth here on what the template actually does. Examples: ```yaml description: Bower is a package manager which stores package information in the bower.json file ``` ```yaml description: Subversion ALM for the enterprise before 8.8.2 allows reflected XSS at multiple locations ```

References for the template. This should contain links relevant to the template. Examples: ```yaml reference: - https://github.com/strapi/strapi - https://github.com/getgrav/grav ```

severity severity.Holder
Severity of the template. Valid values: - info - low - medium - high - critical

metadata map[string]string
Metadata of the template. Examples: ```yaml metadata: customField1: customValue1 ```

classification model.Classification
Classification contains classification information about the template.

remediation string
Remediation steps for the template. You can go in-depth here on how to mitigate the problem found by this template. Examples: ```yaml remediation: Change the default administrative username and password of Apache ActiveMQ by editing the file jetty-realm.properties ```

## stringslice.StringSlice StringSlice represents a single (in-lined) or multiple string value(s). The unmarshaller does not automatically convert in-lined strings to []string, hence the interface{} type is required. Appears in: - model.Info.author - model.Info.tags - model.Info.reference - model.Classification.cve-id - model.Classification.cwe-id - workflows.WorkflowTemplate.tags ```yaml ``` ```yaml # Example tags cve,cve2019,grafana,auth-bypass,dos ``` ```yaml - https://github.com/strapi/strapi - https://github.com/getgrav/grav ``` ```yaml CVE-2020-14420 ``` ```yaml CWE-22 ``` ## severity.Holder Holder holds a Severity type. Required for un/marshalling purposes Appears in: - model.Info.severity ## model.Classification Appears in: - model.Info.classification
CVE ID for the template Examples: ```yaml cve-id: CVE-2020-14420 ```

CWE ID for the template. Examples: ```yaml cwe-id: CWE-22 ```

cvss-metrics string
CVSS Metrics for the template. Examples: ```yaml cvss-metrics: 3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H ```

cvss-score float64
CVSS Score for the template. Examples: ```yaml cvss-score: "9.8" ```

## http.Request Request contains a http request to be made from a template Appears in: - Template.requests ```yaml matchers: - type: word words: - '[core]' - type: dsl condition: and dsl: - '!contains(tolower(body), ''
matchers []matchers.Matcher
Matchers contains the detection mechanism for the request to identify whether the request was successful by doing pattern matching on request/responses. Multiple matchers can be combined with `matcher-condition` flag which accepts either `and` or `or` as argument.

extractors []extractors.Extractor
Extractors contains the extraction mechanism for the request to identify and extract parts of the response.

matchers-condition string
MatchersCondition is the condition between the matchers. Default is OR. Valid values: - and - or

path []string
Path contains the path/s for the HTTP requests. It supports variables as placeholders. Examples: ```yaml # Some example path values path: - '{{BaseURL}}' - '{{BaseURL}}/+CSCOU+/../+CSCOE+/files/file_list.json?path=/sessions' ```

raw []string
Raw contains HTTP Requests in Raw format. Examples: ```yaml # Some example raw requests raw: - |- GET /etc/passwd HTTP/1.1 Host: Content-Length: 4 - |- POST /.%0d./.%0d./.%0d./.%0d./bin/sh HTTP/1.1 Host: {{Hostname}} User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:71.0) Gecko/20100101 Firefox/71.0 Content-Length: 1 Connection: close echo echo cat /etc/passwd 2>&1 ```

id string
ID is the optional id of the request

name string
Name is the optional name of the request. If a name is specified, all the named request in a template can be matched upon in a combined manner allowing multirequest based matchers.

attack string
Attack is the type of payload combinations to perform. batteringram is same payload into all of the defined payload positions at once, pitchfork combines multiple payload sets and clusterbomb generates permutations and combinations for all payloads. Valid values: - batteringram - pitchfork - clusterbomb

method string
Method is the HTTP Request Method. Valid values: - GET - HEAD - POST - PUT - DELETE - CONNECT - OPTIONS - TRACE - PATCH - PURGE

body string
Body is an optional parameter which contains HTTP Request body. Examples: ```yaml # Same Body for a Login POST request body: username=test&password=test ```

payloads map[string]interface{}
Payloads contains any payloads for the current request. Payloads support both key-values combinations where a list of payloads is provided, or optionally a single file can also be provided as payload which will be read on run-time.

headers map[string]string
Headers contains HTTP Headers to send with the request. Examples: ```yaml headers: Any-Header: Any-Value Content-Length: "1" Content-Type: application/x-www-form-urlencoded ```

race_count int
RaceCount is the number of times to send a request in Race Condition Attack. Examples: ```yaml # Send a request 5 times race_count: 5 ```

max-redirects int
MaxRedirects is the maximum number of redirects that should be followed. Examples: ```yaml # Follow up to 5 redirects max-redirects: 5 ```

pipeline-concurrent-connections int
PipelineConcurrentConnections is number of connections to create during pipelining. Examples: ```yaml # Create 40 concurrent connections pipeline-concurrent-connections: 40 ```

pipeline-requests-per-connection int
PipelineRequestsPerConnection is number of requests to send per connection when pipelining. Examples: ```yaml # Send 100 requests per pipeline connection pipeline-requests-per-connection: 100 ```

threads int
Threads specifies number of threads to use sending requests. This enables Connection Pooling. Connection: Close attribute must not be used in request while using threads flag, otherwise pooling will fail and engine will continue to close connections after requests. Examples: ```yaml # Send requests using 10 concurrent threads threads: 10 ```

max-size int
MaxSize is the maximum size of http response body to read in bytes. Examples: ```yaml # Read max 2048 bytes of the response max-size: 2048 ```

cookie-reuse bool
CookieReuse is an optional setting that enables cookie reuse for all requests defined in raw section.

redirects bool
Redirects specifies whether redirects should be followed by the HTTP Client. This can be used in conjunction with `max-redirects` to control the HTTP request redirects.

pipeline bool
Pipeline defines if the attack should be performed with HTTP 1.1 Pipelining All requests must be idempotent (GET/POST). This can be used for race conditions/billions requests.

unsafe bool
Unsafe specifies whether to use rawhttp engine for sending Non RFC-Compliant requests. This uses the [rawhttp](https://github.com/projectdiscovery/rawhttp) engine to achieve complete control over the request, with no normalization performed by the client.

race bool
Race determines if all the request have to be attempted at the same time (Race Condition) The actual number of requests that will be sent is determined by the `race_count` field.

req-condition bool
ReqCondition automatically assigns numbers to requests and preserves their history. This allows matching on them later for multi-request conditions.

stop-at-first-match bool
StopAtFirstMatch stops the execution of the requests and template as soon as a match is found.

skip-variables-check bool
SkipVariablesCheck skips the check for unresolved variables in request

## matchers.Matcher Matcher is used to match a part in the output from a protocol. Appears in: - http.Request.matchers - dns.Request.matchers - file.Request.matchers - network.Request.matchers - headless.Request.matchers
type string
Type is the type of the matcher. Valid values: - status - size - word - regex - binary - dsl

condition string
Condition is the optional condition between two matcher variables. By default, the condition is assumed to be OR. Valid values: - and - or

part string
Part is the part of the request response to match data from. Each protocol exposes a lot of different parts which are well documented in docs for each request type. Examples: ```yaml part: body ``` ```yaml part: raw ```

negative bool
Negative specifies if the match should be reversed It will only match if the condition is not true.

name string
Name of the matcher. Name should be lowercase and must not contain spaces or underscores (_). Examples: ```yaml name: cookie-matcher ```

status []int
Status are the acceptable status codes for the response. Examples: ```yaml status: - 200 - 302 ```

size []int
Size is the acceptable size for the response Examples: ```yaml size: - 3029 - 2042 ```

words []string
Words contains word patterns required to be present in the response part. Examples: ```yaml # Match for outlook mail protection domain words: - mail.protection.outlook.com ``` ```yaml # Match for application/json in response headers words: - application/json ```

regex []string
Regex contains Regular Expression patterns required to be present in the response part. Examples: ```yaml # Match for Linkerd Service via Regex regex: - (?mi)^Via\\s*?:.*?linkerd.*$ ``` ```yaml # Match for Open Redirect via Location header regex: - (?m)^(?:Location\\s*?:\\s*?)(?:https?://|//)?(?:[a-zA-Z0-9\\-_\\.@]*)example\\.com.*$ ```

binary []string
Binary are the binary patterns required to be present in the response part. Examples: ```yaml # Match for Springboot Heapdump Actuator "JAVA PROFILE", "HPROF", "Gunzip magic byte" binary: - 4a4156412050524f46494c45 - 4850524f46 - 1f8b080000000000 ``` ```yaml # Match for 7zip files binary: - 377ABCAF271C ```

dsl []string
DSL are the dsl expressions that will be evaluated as part of nuclei matching rules. A list of these helper functions are available [here](https://nuclei.projectdiscovery.io/templating-guide/helper-functions/). Examples: ```yaml # DSL Matcher for package.json file dsl: - contains(body, 'packages') && contains(tolower(all_headers), 'application/octet-stream') && status_code == 200 ``` ```yaml # DSL Matcher for missing strict transport security header dsl: - '!contains(tolower(all_headers), ''''strict-transport-security'''')' ```

encoding string
Encoding specifies the encoding for the words field if any. Valid values: - hex

## extractors.Extractor Extractor is used to extract part of response using a regex. Appears in: - http.Request.extractors - dns.Request.extractors - file.Request.extractors - network.Request.extractors - headless.Request.extractors
name string
Name of the extractor. Name should be lowercase and must not contain spaces or underscores (_). Examples: ```yaml name: cookie-extractor ```

type string
Type is the type of the extractor. Valid values: - regex - kval - json - xpath

regex []string
Regex contains the regular expression patterns to extract from a part. Go regex engine does not support lookaheads or lookbehinds, so as a result they are also not supported in nuclei. Examples: ```yaml # Braintree Access Token Regex regex: - access_token\$production\$[0-9a-z]{16}\$[0-9a-f]{32} ``` ```yaml # Wordpress Author Extraction regex regex: - Author:(?:[A-Za-z0-9 -\_="]+)? group int
Group specifies a numbered group to extract from the regex. Examples: ```yaml # Example Regex Group group: 1 ```

kval []string
description: | kval contains the key-value pairs present in the HTTP response header. kval extractor can be used to extract HTTP response header and cookie key-value pairs. kval extractor inputs are case-insensitive, and does not support dash (-) in input which can replaced with underscores (_) For example, Content-Type should be replaced with content_type A list of supported parts is available in docs for request types. examples: - name: Extract Server Header From HTTP Response value: > []string{"server"} - name: Extracting value of PHPSESSID Cookie value: > []string{"phpsessid"} - name: Extracting value of Content-Type Cookie value: > []string{"content_type"}

json []string
JSON allows using jq-style syntax to extract items from json response Examples: ```yaml json: - .[] | .id ``` ```yaml json: - .batters | .batter | .[] | .id ```

xpath []string
XPath allows using xpath expressions to extract items from html response Examples: ```yaml xpath: - /html/body/div/p[2]/a ```

attribute string
Attribute is an optional attribute to extract from response XPath. Examples: ```yaml attribute: href ```

part string
Part is the part of the request response to extract data from. Each protocol exposes a lot of different parts which are well documented in docs for each request type. Examples: ```yaml part: body ``` ```yaml part: raw ```

internal bool
Internal, when set to true will allow using the value extracted in the next request for some protocols (like HTTP).

## dns.Request Request contains a DNS protocol request to be made from a template Appears in: - Template.dns ```yaml extractors: - type: regex regex: - ec2-[-\d]+\.compute[-\d]*\.amazonaws\.com - ec2-[-\d]+\.[\w\d\-]+\.compute[-\d]*\.amazonaws\.com name: '{{FQDN}}' type: CNAME class: inet retries: 2 recursion: true ```
matchers []matchers.Matcher
Matchers contains the detection mechanism for the request to identify whether the request was successful by doing pattern matching on request/responses. Multiple matchers can be combined with `matcher-condition` flag which accepts either `and` or `or` as argument.

extractors []extractors.Extractor
Extractors contains the extraction mechanism for the request to identify and extract parts of the response.

matchers-condition string
MatchersCondition is the condition between the matchers. Default is OR. Valid values: - and - or

id string
ID is the optional id of the request

name string
Name is the Hostname to make DNS request for. Generally, it is set to {{FQDN}} which is the domain we get from input. Examples: ```yaml name: '{{FQDN}}' ```

type string
Type is the type of DNS request to make. Valid values: - A - NS - DS - CNAME - SOA - PTR - MX - TXT - AAAA

class string
Class is the class of the DNS request. Usually it's enough to just leave it as INET. Valid values: - inet - csnet - chaos - hesiod - none - any

retries int
Retries is the number of retries for the DNS request Examples: ```yaml # Use a retry of 3 to 5 generally retries: 5 ```

recursion bool
Recursion determines if resolver should recurse all records to get fresh results.

resolvers []string
Resolvers to use for the dns requests

## file.Request Request contains a File matching mechanism for local disk operations. Appears in: - Template.file ```yaml extractors: - type: regex regex: - amzn\.mws\.[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12} extensions: - all ```
matchers []matchers.Matcher
Matchers contains the detection mechanism for the request to identify whether the request was successful by doing pattern matching on request/responses. Multiple matchers can be combined with `matcher-condition` flag which accepts either `and` or `or` as argument.

extractors []extractors.Extractor
Extractors contains the extraction mechanism for the request to identify and extract parts of the response.

matchers-condition string
MatchersCondition is the condition between the matchers. Default is OR. Valid values: - and - or

extensions []string
Extensions is the list of extensions to perform matching on. Examples: ```yaml extensions: - .txt - .go - .json ```

denylist []string
ExtensionDenylist is the list of file extensions to deny during matching. By default, it contains some non-interesting extensions that are hardcoded in nuclei. Examples: ```yaml denylist: - .avi - .mov - .mp3 ```

id string
ID is the optional id of the request

max-size int
MaxSize is the maximum size of the file to run request on. By default, nuclei will process 5 MB files and not go more than that. It can be set to much lower or higher depending on use. Examples: ```yaml max-size: 2048 ```

no-recursive bool
NoRecursive specifies whether to not do recursive checks if folders are provided.

## network.Request Request contains a Network protocol request to be made from a template Appears in: - Template.network ```yaml host: - '{{Hostname}}' - '{{Hostname}}:2181' inputs: - data: "envi\r\nquit\r\n" read-size: 2048 matchers: - type: word words: - zookeeper.version ```
id string
ID is the optional id of the request

host []string
Host to send network requests to. Usually it's set to `{{Hostname}}`. If you want to enable TLS for TCP Connection, you can use `tls://{{Hostname}}`. Examples: ```yaml host: - '{{Hostname}}' ```

attack string
Attack is the type of payload combinations to perform. Batteringram is same payload into all of the defined payload positions at once, pitchfork combines multiple payload sets and clusterbomb generates permutations and combinations for all payloads. Valid values: - batteringram - pitchfork - clusterbomb

payloads map[string]interface{}
Payloads contains any payloads for the current request. Payloads support both key-values combinations where a list of payloads is provided, or optionally a single file can also be provided as payload which will be read on run-time.

inputs []network.Input
Inputs contains inputs for the network socket

read-size int
ReadSize is the size of response to read at the end Default value for read-size is 1024. Examples: ```yaml read-size: 2048 ```

read-all bool
ReadAll determines if the data stream should be read till the end regardless of the size Default value for read-all is false. Examples: ```yaml read-all: false ```

matchers []matchers.Matcher
Matchers contains the detection mechanism for the request to identify whether the request was successful by doing pattern matching on request/responses. Multiple matchers can be combined with `matcher-condition` flag which accepts either `and` or `or` as argument.

extractors []extractors.Extractor
Extractors contains the extraction mechanism for the request to identify and extract parts of the response.

matchers-condition string
MatchersCondition is the condition between the matchers. Default is OR. Valid values: - and - or

## network.Input Appears in: - network.Request.inputs
data string
Data is the data to send as the input. It supports DSL Helper Functions as well as normal expressions. Examples: ```yaml data: TEST ``` ```yaml data: hex_decode('50494e47') ```

type string
Type is the type of input specified in `data` field. Default value is text, but hex can be used for hex formatted data. Valid values: - hex - text

read int
Read is the number of bytes to read from socket. This can be used for protocols which expect an immediate response. You can read and write responses one after another and evetually perform matching on every data captured with `name` attribute. The [network docs](https://nuclei.projectdiscovery.io/templating-guide/protocols/network/) highlight more on how to do this. Examples: ```yaml read: 1024 ```

name string
Name is the optional name of the data read to provide matching on. Examples: ```yaml name: prefix ```

## headless.Request Request contains a Headless protocol request to be made from a template Appears in: - Template.headless
id string
ID is the optional id of the request

steps []engine.Action
Steps is the list of actions to run for headless request

matchers []matchers.Matcher
Matchers contains the detection mechanism for the request to identify whether the request was successful by doing pattern matching on request/responses. Multiple matchers can be combined with `matcher-condition` flag which accepts either `and` or `or` as argument.

extractors []extractors.Extractor
Extractors contains the extraction mechanism for the request to identify and extract parts of the response.

matchers-condition string
MatchersCondition is the condition between the matchers. Default is OR. Valid values: - and - or

## engine.Action Action is an action taken by the browser to reach a navigation Each step that the browser executes is an action. Most navigations usually start from the ActionLoadURL event, and further navigations are discovered on the found page. We also keep track and only scrape new navigation from pages we haven't crawled yet. Appears in: - headless.Request.steps
args map[string]string
Args contain arguments for the headless action. Per action arguments are described in detail [here](https://nuclei.projectdiscovery.io/templating-guide/protocols/headless/).

name string
Name is the name assigned to the headless action. This can be used to execute code, for instance in browser DOM using script action, and get the result in a variable which can be matched upon by nuclei. An Example template [here](https://github.com/projectdiscovery/nuclei-templates/blob/master/headless/prototype-pollution-check.yaml).

description string
Description is the optional description of the headless action

action string
Action is the type of the action to perform. Valid values: - navigate - script - click - rightclick - text - screenshot - time - select - files - waitload - getresource - extract - setmethod - addheader - setheader - deleteheader - setbody - waitevent - keyboard - debug - sleep

## workflows.WorkflowTemplate Appears in: - Template.workflows - workflows.WorkflowTemplate.subtemplates - workflows.Matcher.subtemplates
template string
Template is a single template or directory to execute as part of workflow. Examples: ```yaml # A single template template: dns/worksites-detection.yaml ``` ```yaml # A template directory template: misconfigurations/aem ```

Tags to run templates based on.

matchers []workflows.Matcher
Matchers perform name based matching to run subtemplates for a workflow.

Subtemplates are run if the `template` field Template matches.

## workflows.Matcher Appears in: - workflows.WorkflowTemplate.matchers
name string
Name is the name of the item to match.

Subtemplates are run if the name of matcher matches.