{"id":"GHSA-g98g-r7gf-2r25","aliases":["CVE-2025-47275"],"title":"Brute Force Authentication Tags of CookieStore Sessions in Auth0-PHP SDK","titleSource":"OSV","descriptionSource":"OSV","declaredSeverity":"CRITICAL","description":"**Overview**\nSession 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.\n\n**Am I Affected?**\nYou are affected by this vulnerability if you meet the following pre-conditions:\n1. Applications using the Auth0-PHP SDK, or the following SDKs that rely on the Auth0-PHP SDK:\n    a. Auth0/symfony,\n    b. Auth0/laravel-auth0,\n    c. Auth0/wordpress,\n2. Session storage configured with CookieStore.\n\n**Fix**\nUpgrade Auth0/Auth0-PHP to v8.14.0. As an additional precautionary measure, we recommend rotating your cookie encryption keys. Note that once updated, any previous session cookies will be rejected.\n\n**Acknowledgement**\nOkta would like to thank Félix Charette for discovering this vulnerability.","severity":"critical","score":9.1,"published":"2025-05-16T17:48:55.000Z","modified":"2026-02-04T04:04:22.253Z","withdrawn":false,"knownExploited":false,"affected":[{"ecosystem":"Packagist","name":"auth0/auth0-php","sources":[{"name":"OSV · GHSA-g98g-r7gf-2r25","url":"https://osv.dev/vulnerability/GHSA-g98g-r7gf-2r25"}],"ranges":[{"events":[{"introduced":"8.0.0-BETA1"},{"fixed":"8.14.0"}],"type":"ECOSYSTEM"}],"versions":["8.0.0","8.0.0-BETA1","8.0.0-BETA2","8.0.0-BETA3","8.0.1","8.0.2","8.0.3","8.0.4","8.0.5","8.0.6","8.1.0","8.10.0","8.11.0","8.11.1","8.12.0","8.13.0","8.2.0","8.2.1","8.3.0","8.3.1","8.3.2","8.3.3","8.3.4","8.3.5","8.3.6","8.3.7","8.3.8","8.4.0","8.5.0","8.6.0","8.7.0","8.7.1","8.8.0","8.9.0","8.9.1","8.9.3"],"fixed":["8.14.0"]}],"sourceAffected":[],"references":["https://github.com/auth0/auth0-PHP/security/advisories/GHSA-g98g-r7gf-2r25","https://github.com/auth0/laravel-auth0/security/advisories/GHSA-9fwj-9mjf-rhj3","https://github.com/auth0/symfony/security/advisories/GHSA-9wg9-93h9-j8ch","https://github.com/auth0/wordpress/security/advisories/GHSA-2f4r-34m4-3w8q","https://nvd.nist.gov/vuln/detail/CVE-2025-47275","https://github.com/auth0/auth0-PHP/commit/52a79480fdb246f59dbc089b81a784ae049bd389","https://github.com/auth0/auth0-PHP","https://github.com/auth0/auth0-PHP/releases/tag/8.14.0"],"sources":[{"name":"OSV","id":"GHSA-g98g-r7gf-2r25","modified":"2026-02-04T04:04:22.253570Z","url":"https://osv.dev/vulnerability/GHSA-g98g-r7gf-2r25"}],"assessments":[{"source":"OSV","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","score":9.1}],"products":[],"remediation":[],"kev":{"status":"not-listed","checkedAt":"2026-10-29T02:30:33.887Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[]}