{"id":"GHSA-2f4r-34m4-3w8q","aliases":[],"status":"published","title":"Auth0 Wordpress plugin Vulnerable to Brute Force Authentication Tags of CookieStore Sessions","description":"**Overview**\nSession cookies of applications using the Auth0 Wordpress plugin 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 WordPress Plugin with version \u003c=5.2.1\n2. Auth0 WordPress Plugin uses the Auth0-PHP SDK with version 8.0.0-BETA1 or higher and below 8.14.0. \n3. Session storage configured with CookieStore.\n\n\n**Fix**\nUpgrade Auth0/wordpress plugin to v5.3.0. 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":{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical","from":"ghsa"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-287"],"published":"2025-05-17T15:07:23Z","modified":"2026-02-04T02:29:04Z","fixes":[{"ecosystem":"Packagist","package":"auth0/wordpress","fixed_in":["5.3.0"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"auth0/wordpress","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.3.0"}]}]},{"source":"osv","ecosystem":"Packagist","package":"auth0/wordpress","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.3.0"}]}],"versions":["2.0.0","2.1.0","2.1.1","2.1.11","2.1.2","2.1.3","2.1.4","2.1.5","2.1.6","2.1.7","2.1.8","2.1.9","2.2.0","3.1.1","3.1.2","3.1.3","3.1.4","3.10.0","3.11.0","3.11.1","3.11.2","3.11.3","3.2.0","3.2.10","3.2.14","3.2.19","3.2.21","3.2.22","3.2.23","3.2.24","3.2.25","3.2.5","3.2.8","3.2.9","3.3.2","3.4.0","3.5.0","3.5.1","3.5.2","3.6.0","3.6.1","3.6.2","3.7.0","3.7.1","3.7.3","3.8.0","3.8.1","3.9.0","4.0.0","4.1.0","4.1.1","4.2.0","4.3.0","4.3.1","4.4.0","4.5.0","4.6.0","4.6.1","4.6.2","5.0.0","5.0.0-BETA0","5.0.0-BETA1","5.0.1","5.1.0","5.2.0","5.2.1"]}],"references":[{"url":"https://github.com/auth0/wordpress/security/advisories/GHSA-2f4r-34m4-3w8q","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-47275","tags":["advisory"]},{"url":"https://github.com/auth0/wordpress/commit/06b64468089472d8b62c881708be7eb3749b35ac","tags":["web"]},{"url":"https://github.com/auth0/wordpress/releases/tag/5.3.0","tags":["web"]},{"url":"https://github.com/advisories/GHSA-2f4r-34m4-3w8q"},{"url":"https://github.com/auth0/wordpress","tags":["package"]}],"sources":{"ghsa":[{"id":"GHSA-2f4r-34m4-3w8q","title":"Auth0 Wordpress plugin Vulnerable to Brute Force Authentication Tags of CookieStore Sessions","description":"**Overview**\nSession cookies of applications using the Auth0 Wordpress plugin 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 WordPress Plugin with version \u003c=5.2.1\n2. Auth0 WordPress Plugin uses the Auth0-PHP SDK with version 8.0.0-BETA1 or higher and below 8.14.0. \n3. Session storage configured with CookieStore.\n\n\n**Fix**\nUpgrade Auth0/wordpress plugin to v5.3.0. 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.","status":"published","published":"2025-05-17T15:07:23Z","modified":"2025-05-17T15:07:24Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:38:43.998596Z"}],"osv":[{"id":"GHSA-2f4r-34m4-3w8q","title":"Auth0 Wordpress plugin Vulnerable to Brute Force Authentication Tags of CookieStore Sessions","description":"**Overview**\nSession cookies of applications using the Auth0 Wordpress plugin 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 WordPress Plugin with version \u003c=5.2.1\n2. Auth0 WordPress Plugin uses the Auth0-PHP SDK with version 8.0.0-BETA1 or higher and below 8.14.0. \n3. Session storage configured with CookieStore.\n\n\n**Fix**\nUpgrade Auth0/wordpress plugin to v5.3.0. 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.","status":"published","published":"2025-05-17T15:07:23Z","modified":"2026-02-04T02:29:04.364804Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T15:46:34.338541Z"}]}}