{"id":"CVE-2025-47275","aliases":["GHSA-g98g-r7gf-2r25"],"url":"https://o3.security/vulnerability/CVE-2025-47275","summary":"Brute Force Authentication Tags of CookieStore Sessions in Auth0-PHP SDK","details":"Auth0-PHP provides the PHP SDK for Auth0 Authentication and Management APIs. Starting in version 8.0.0-BETA1 and prior to version 8.14.0, session cookies of applications using the Auth0-PHP SDK configured with CookieStore have authentication tags that can be brute forced, which may result in unauthorized access. Certain pre-conditions are required to be vulnerable to this issue: Applications using the Auth0-PHP SDK, or the Auth0/symfony, Auth0/laravel-auth0, and Auth0/wordpress SDKs that rely on the Auth0-PHP SDK; and session storage configured with CookieStore. Upgrade Auth0/Auth0-PHP to v8.14.0 to receive a patch. As an additional precautionary measure, rotating cookie encryption keys is recommended. Note that once updated, any previous session cookies will be rejected.","published":"2025-05-15T21:13:01.150Z","modified":"2026-07-15T01:49:00.330128723Z","cvss":{"score":9.1,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Packagist","name":"auth0/auth0-php","fixedVersion":"8.14.0"}],"fix":{"url":"https://github.com/auth0/auth0-PHP/commit/52a79480fdb246f59dbc089b81a784ae049bd389","label":"auth0/auth0-PHP@52a7948"},"references":[{"type":"WEB","url":"https://github.com/auth0/auth0-PHP/releases/tag/8.14.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/47xxx/CVE-2025-47275.json"},{"type":"ADVISORY","url":"https://github.com/auth0/auth0-PHP/security/advisories/GHSA-g98g-r7gf-2r25"},{"type":"ADVISORY","url":"https://github.com/auth0/laravel-auth0/security/advisories/GHSA-9fwj-9mjf-rhj3"},{"type":"ADVISORY","url":"https://github.com/auth0/symfony/security/advisories/GHSA-9wg9-93h9-j8ch"},{"type":"ADVISORY","url":"https://github.com/auth0/wordpress/security/advisories/GHSA-2f4r-34m4-3w8q"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-47275"},{"type":"FIX","url":"https://github.com/auth0/auth0-PHP/commit/52a79480fdb246f59dbc089b81a784ae049bd389"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-15T01:49:00.330128723Z"}}