{"id":"CVE-2026-111891","revision":"8c93f793da7f48178d9de40247c8302a","records":[{"revision":"8c93f793da7f48178d9de40247c8302a","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-111891","aliases":[],"title":"phpMyFAQ from 4.2.0-alpha.2 before 4.2.0-beta Privilege Escalation via Group Permissions API","description":"phpMyFAQ from 4.2.0-alpha.2 before 4.2.0-beta contains a privilege escalation vulnerability in the group permission API, whose updatePermissions and updateMembers endpoints check held rights without regard to language or category scope and write unrestricted group grants. Non-superadmin administrators holding GROUP_EDIT can grant a group a right they hold only in a narrow scope and self-join it via updateMembers, gaining unrestricted FAQ create, edit, and publish access across all languages and categories.","state":0,"publishedAt":"2026-10-17T18:46:15.227+00:00","modifiedAt":"2026-10-19T16:40:19.217+00:00","affected":[{"ecosystem":"Vendor product","name":"phpMyFAQ","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"thorsten\",\n                    \"product\": \"phpMyFAQ\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"4.2.0-alpha.2\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"4.2.0-beta\"\n                        },\n                        {\n                            \"version\": \"4.2.0-beta\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N","score":7,"severity":"HIGH"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N","score":5.5,"severity":"MEDIUM"}],"references":["https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-6vf7-mrj2-7c37","https://www.vulncheck.com/advisories/phpmyfaq-from-4.2.0-alpha.2-before-4.2.0-beta-privilege-escalation-via-group-permissions-api"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-111891","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-111891","identifiers":["CVE-2026-111891"]},"retained":false,"historicalAffected":[]}],"coverage":[]}