# CVE-2025-47275: Brute Force Authentication Tags of CookieStore Sessions in Auth0-PHP SDK

> CVE-2025-47275: Brute Force Authentication Tags of CookieStore Sessions in Auth0-PHP SDK. CVSS 9.1 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2025-47275
Last updated: 2026-06-17T09:27:39Z

- Published: 2025-05-15 21:13 UTC · Updated: 2026-06-17 09:27 UTC · Assigner: GitHub\_M
- CVSS: 9.1 (CVSS 3.1) · Severity: Critical · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- EPSS: 0.54%, 45th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-287

## Description

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.

## Affected vendors and products

- auth0: auth0-PHP

## Tracked companies

- [Auth0](https://rewindex.com/company/auth0.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2025-47275)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2025-47275)
- [https://github.com/auth0/auth0-PHP/commit/52a79480fdb246f59dbc089b81a784ae049bd389](https://github.com/auth0/auth0-PHP/commit/52a79480fdb246f59dbc089b81a784ae049bd389)
- [https://github.com/auth0/auth0-PHP/releases/tag/8.14.0](https://github.com/auth0/auth0-PHP/releases/tag/8.14.0)
- [https://github.com/auth0/auth0-PHP/security/advisories/GHSA-g98g-r7gf-2r25](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/laravel-auth0/security/advisories/GHSA-9fwj-9mjf-rhj3)
- [https://github.com/auth0/symfony/security/advisories/GHSA-9wg9-93h9-j8ch](https://github.com/auth0/symfony/security/advisories/GHSA-9wg9-93h9-j8ch)
- [https://github.com/auth0/wordpress/security/advisories/GHSA-2f4r-34m4-3w8q](https://github.com/auth0/wordpress/security/advisories/GHSA-2f4r-34m4-3w8q)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2025-47275 · Markdown: https://rewindex.com/cve/CVE-2025-47275.md · JSON: https://rewindex.com/api/v1/cves/CVE-2025-47275 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:12:54.405Z