{"id":"CVE-2026-111898","aliases":["EUVD-2026-103321","GHSA-8rmr-jc2p-xv7g","GHSA-rg4w-2j3r-2hhp"],"status":"published","title":"phpMyFAQ 4.2.0-alpha before 4.2.0-beta Account Takeover via Keycloak Implicit Account Linking","description":"phpMyFAQ 4.2.0-alpha before 4.2.0-beta contains an authentication bypass vulnerability that allows Keycloak users to take over local accounts by matching preferred_username or email. Attackers controlling a Keycloak identity with a colliding username or unverified email can log in through /auth/keycloak/authorize to bind their subject and gain superadmin privileges.","severity":{"version":"4.0","score":7.7,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00435,"percentile":0.38303,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287"],"published":"2026-10-17T18:46:20Z","modified":"2026-10-28T02:30:24Z","products":[{"vendor":"thorsten","product":"phpmyfaq"}],"references":[{"url":"https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-rg4w-2j3r-2hhp","tags":["vendor-advisory","exploit","advisory"]},{"url":"https://www.vulncheck.com/advisories/phpmyfaq-4.2.0-alpha-before-4.2.0-beta-account-takeover-via-keycloak-implicit-account-linking","tags":["third-party-advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-111898","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-8rmr-jc2p-xv7g"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111898.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-111898","title":"phpMyFAQ 4.2.0-alpha before 4.2.0-beta Account Takeover via Keycloak Implicit Account Linking","description":"phpMyFAQ 4.2.0-alpha before 4.2.0-beta contains an authentication bypass vulnerability that allows Keycloak users to take over local accounts by matching preferred_username or email. Attackers controlling a Keycloak identity with a colliding username or unverified email can log in through /auth/keycloak/authorize to bind their subject and gain superadmin privileges.","status":"published","published":"2026-10-17T18:46:20.655Z","modified":"2026-10-18T11:21:21.852Z","cvss":[{"version":"4.0","score":7.7,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:20:15.712761Z"}],"euvd":[{"id":"EUVD-2026-103321","description":"phpMyFAQ 4.2.0-alpha before 4.2.0-beta contains an authentication bypass vulnerability that allows Keycloak users to take over local accounts by matching preferred_username or email. Attackers controlling a Keycloak identity with a colliding username or unverified email can log in through /auth/keycloak/authorize to bind their subject and gain superadmin privileges.","status":"published","published":"2026-10-17T18:46:20Z","modified":"2026-10-18T11:21:21Z","cvss":[{"version":"4.0","score":7.7,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T17:00:00.923575Z"}],"ghsa":[{"id":"GHSA-8rmr-jc2p-xv7g","title":"phpMyFAQ 4.2.0-alpha before 4.2.0-beta contains an authentication bypass vulnerability that...","description":"phpMyFAQ 4.2.0-alpha before 4.2.0-beta contains an authentication bypass vulnerability that allows Keycloak users to take over local accounts by matching preferred_username or email. Attackers controlling a Keycloak identity with a colliding username or unverified email can log in through /auth/keycloak/authorize to bind their subject and gain superadmin privileges.","status":"published","published":"2026-10-17T21:31:18Z","modified":"2026-10-17T21:31:26Z","cvss":[{"version":"4.0","score":7.7,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T15:13:53.726362Z"}],"nvd":[{"id":"CVE-2026-111898","description":"phpMyFAQ 4.2.0-alpha before 4.2.0-beta contains an authentication bypass vulnerability that allows Keycloak users to take over local accounts by matching preferred_username or email. Attackers controlling a Keycloak identity with a colliding username or unverified email can log in through /auth/keycloak/authorize to bind their subject and gain superadmin privileges.","status":"published","published":"2026-10-17T19:16:31.647Z","modified":"2026-10-18T12:17:10.383Z","cvss":[{"version":"4.0","score":7.7,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:13:00.123071Z"}],"osv":[{"id":"CVE-2026-111898","title":"phpMyFAQ 4.2.0-alpha before 4.2.0-beta Account Takeover via Keycloak Implicit Account Linking","description":"phpMyFAQ 4.2.0-alpha before 4.2.0-beta contains an authentication bypass vulnerability that allows Keycloak users to take over local accounts by matching preferred_username or email. Attackers controlling a Keycloak identity with a colliding username or unverified email can log in through /auth/keycloak/authorize to bind their subject and gain superadmin privileges.","status":"published","published":"2026-10-17T18:46:20.655Z","modified":"2026-10-28T02:30:24.298155459Z","cvss":[{"version":"4.0","score":7.7,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T15:44:55.938017Z"}]}}