Vulnerability details
CVE-2025-48951
auth0 auth0-PHP
Auth0-PHP SDK Deserialization of Untrusted Data vulnerability
CVSS 4.0
9.3Critical
Official description
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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.3Critical | 4.0 | CVEProject cvelistV5 (CNA) (GitHub_M) | 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 |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| auth0 | auth0-PHP | >= 8.0.0-BETA3, < 8.3.1 | CVEProject cvelistV5 (CNA) |
References and advisories
5- https://github.com/auth0/auth0-PHP/security/advisories/GHSA-v9m8-9xxp-q492 x_refsource_CONFIRM
- https://github.com/auth0/laravel-auth0/security/advisories/GHSA-c42h-56wx-h85q x_refsource_MISC
- https://github.com/auth0/symfony/security/advisories/GHSA-98j6-67v3-mw34 x_refsource_MISC
- https://github.com/auth0/wordpress/security/advisories/GHSA-862m-5253-832r x_refsource_MISC
- https://github.com/auth0/auth0-PHP/commit/04b1f5daa8bdfebc5e740ec5ca0fb2df1648a715 x_refsource_MISC
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Details
- Published
- 2025-06-04
- Last updated
- 2025-06-05
- State
- Published
- Assigner (CNA)
- GitHub_M
Exploit prediction (EPSS)
0.75%
Probability of exploitation in 30 days
55.2%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-502Deserialization of Untrusted Data