RevealJS postMessage <4.3.0 - Cross-Site Scripting

id: CVE-2022-0776

info:
  name: RevealJS postMessage <4.3.0 - Cross-Site Scripting
  author: LogicalHunter
  severity: medium
  description: RevealJS postMessage before 4.3.0 contains a cross-site scripting vulnerability via the document object model.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to execute arbitrary JavaScript code in the context of the victim's browser, leading to potential data theft, session hijacking, or defacement of the affected website.
  remediation: |
    Upgrade to RevealJS postMessage version 4.3.0 or later to mitigate this vulnerability.
  reference:
    - https://hackerone.com/reports/691977
    - https://github.com/hakimel/reveal.js/pull/3137
    - https://huntr.dev/bounties/be2b7ee4-f487-42e1-874a-6bcc410e4001/
    - https://nvd.nist.gov/vuln/detail/CVE-2022-0776
    - https://github.com/hakimel/reveal.js/commit/32cdd3b1872ba8e2267c9e87ae216cb55f40f4d2
  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-2022-0776
    cwe-id: CWE-79
    epss-score: 0.03679
    epss-percentile: 0.88244
    cpe: cpe:2.3:a:revealjs:reveal.js:*:*:*:*:*:node.js:*:*
  metadata:
    vendor: revealjs
    product: reveal.js
    framework: node.js
  tags: cve,cve2022,hackerone,huntr,headless,postmessage,revealjs,node.js,vuln
headless:
  - steps:
      - args:
          url: "{{BaseURL}}"
        action: navigate

      - action: waitload

      - action: script
        name: extract
        args:
          code: |
            () => {
            return (Reveal.VERSION <= "3.8.0" || Reveal.VERSION < "4.3.0")
            }
    matchers:
      - type: word
        part: extract
        words:
          - "true"
# digest: 4a0a0047304502205ae08fa77318e831dc22328f8b4093a9993ee1e0c5d6dc2fa3c343145df129a30221008a9d8783df36c625060988035a8bf774d9adc4c7b29b71e4511c4a625b598386:922c64590222798bb761d5b6d8e72950