id: CVE-2021-25074

info:
  name: WordPress WebP Converter for Media < 4.0.3 - Unauthenticated Open Redirect
  author: dhiyaneshDk
  severity: medium
  description: WordPress WebP Converter for Media < 4.0.3 contains a file (passthru.php) which does not validate the src parameter before redirecting the user to it, leading to an open redirect issue.
  reference:
    - https://wpscan.com/vulnerability/f3c0a155-9563-4533-97d4-03b9bac83164
    - https://nvd.nist.gov/vuln/detail/CVE-2021-25074
  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-2021-25074
    cwe-id: CWE-601
  tags: cve,cve2021,wordpress,redirect,wp-plugin,webpconverter

requests:
  - method: GET
    path:
      - "{{BaseURL}}/wp-content/plugins/webp-converter-for-media/includes/passthru.php?src=https://example.com"

    matchers:
      - type: regex
        part: header
        regex:
          - '(?m)^(?:Location\s*?:\s*?)(?:https?:\/\/|\/\/|\/\\\\|\/\\)?(?:[a-zA-Z0-9\-_\.@]*)example\.com\/?(\/|[^.].*)?$' # https://regex101.com/r/ZDYhFh/1

# Enhanced by mp on 2022/04/21