CVE-2022-0218: HTML Email Template Designer < 3.1 - Stored Cross-Site Scripting

id: CVE-2022-0218

info:
  name: HTML Email Template Designer < 3.1 - Stored Cross-Site Scripting
  author: hexcat
  severity: medium
  description: WordPress Email Template Designer WP HTML Mail allows stored cross-site scripting through an unprotected REST-API endpoint.
  impact: |
    An attacker can exploit this vulnerability to inject malicious scripts into the subject field of an email template, potentially leading to unauthorized access, data theft, or further compromise of the affected system.
  remediation: |
    Update to version 3.1 or later of the HTML Email Template Designer plugin to fix the vulnerability.
  reference:
    - https://www.wordfence.com/blog/2022/01/unauthenticated-xss-vulnerability-patched-in-html-email-template-designer-plugin/
    - https://wordpress.org/plugins/wp-html-mail/
    - https://nvd.nist.gov/vuln/detail/CVE-2022-0218
    - https://plugins.trac.wordpress.org/changeset/2656984/wp-html-mail/trunk/includes/class-template-designer.php
    - https://github.com/ARPSyndicate/cvemon
  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-2022-0218
    cwe-id: CWE-79
    epss-score: 0.68479
    epss-percentile: 0.9857
    cpe: cpe:2.3:a:codemiq:wordpress_email_template_designer:*:*:*:*:*:wordpress:*:*
  metadata:
    max-request: 1
    vendor: codemiq
    product: wordpress_email_template_designer
    framework: wordpress
  tags: cve,cve2022,wordpress,wp-plugin,xss,codemiq

http:
  - method: GET
    path:
      - "{{BaseURL}}/index.php?rest_route=/whm/v3/themesettings"

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - '"background":'
          - '"footer":'
        condition: and

      - type: word
        part: header
        words:
          - "application/json"

      - type: status
        status:
          - 200
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