Auth bypass in Xwiki-Contrib Oidc
CVE-2025-49594
XWiki OIDC has various tools to manipulate OpenID Connect protocol in XWiki. Starting in version 2.17.1 and prior to version 2.18.2, anyone with VIEW access to a user profile can create a token for that user. If that XWiki instance is configured to allow token authentication, it allows authentication with any user (since users are very commonly viewable, at least to other registered users). Version 2.18.2 contains a patch. As a workaround, disable token access.
EPSS: 0.005 (42.0th percentile) — read the EPSS interpretation.
Affected products
- Xwiki-contrib Oidc — versions >= 2.17.1, < 2.18.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- af854a3a-2127-422b-91ae-364da2661108
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2025-49594?
- CVE-2025-49594 is a vulnerability in Xwiki-Contrib Oidc, classified under Improper Authorization. Published 2025-10-06.
- Is CVE-2025-49594 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.