{"id":"CVE-2025-48951","summary":"Auth0-PHP SDK Deserialization of Untrusted Data vulnerability","details":"Auth0-PHP is a PHP SDK for Auth0 Authentication and Management APIs. Versions 8.0.0-BETA3 prior to 8.3.1 contain a vulnerability due to insecure deserialization of cookie data. If exploited, since SDKs process cookie content without prior authentication, a threat actor could send a specially crafted cookie containing malicious serialized data. Applications using the Auth0-PHP SDK are affected, as are applications using the Auth0/symfony, Auth0/laravel-auth0, or Auth0/wordpress SDKs, because those SDKsrely on the Auth0-PHP SDK versions from 8.0.0-BETA3 until 8.14.0. Version 8.3.1 contains a patch for the issue.","aliases":["GHSA-v9m8-9xxp-q492"],"modified":"2026-08-12T03:51:28.792729992Z","published":"2025-06-03T20:52:35.064Z","related":["GHSA-862m-5253-832r","GHSA-98j6-67v3-mw34","GHSA-c42h-56wx-h85q","GHSA-v9m8-9xxp-q492"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/48xxx/CVE-2025-48951.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-502"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/48xxx/CVE-2025-48951.json"},{"type":"ADVISORY","url":"https://github.com/auth0/auth0-PHP/security/advisories/GHSA-v9m8-9xxp-q492"},{"type":"ADVISORY","url":"https://github.com/auth0/laravel-auth0/security/advisories/GHSA-c42h-56wx-h85q"},{"type":"ADVISORY","url":"https://github.com/auth0/symfony/security/advisories/GHSA-98j6-67v3-mw34"},{"type":"ADVISORY","url":"https://github.com/auth0/wordpress/security/advisories/GHSA-862m-5253-832r"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-48951"},{"type":"FIX","url":"https://github.com/auth0/auth0-PHP/commit/04b1f5daa8bdfebc5e740ec5ca0fb2df1648a715"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/auth0/auth0-php","events":[{"introduced":"c0168fe385e18d8a2cd3980512142cc2449bea0b"},{"fixed":"04b1f5daa8bdfebc5e740ec5ca0fb2df1648a715"}],"database_specific":{"extracted_events":[{"introduced":"8.0.0-BETA3"},{"fixed":"8.3.1"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"versions":["8.3.0","8.2.1","8.2.0","8.1.0","8.0.6","8.0.5","8.0.4","8.0.3","8.0.2","8.0.1","8.0.0","8.0.0-BETA3"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-48951.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:H/SI:H/SA:H"}]}