CVE-2025-49594
CRITICALOrg.xwiki.contrib.oidc Oidc-authenticator - Improper Authorization
Title source: ruleDescription
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.
References (5)
Core 5
Core References
Vendor Advisory x_refsource_confirm
https://github.com/xwiki-contrib/oidc/security/advisories/GHSA-f2hf-pfrj-vrm7
Patch x_refsource_misc
https://github.com/xwiki-contrib/oidc/commit/d90d717172283aaa96bb5bb44e357f910ae64adb
Various Sources x_refsource_misc
https://jira.xwiki.org/browse/OIDC-240
Third Party Advisory
https://www.vicarius.io/vsociety/posts/cve-2025-49594-detect-xwiki-vulnerability
Third Party Advisory
https://www.vicarius.io/vsociety/posts/cve-2025-49594-mitigate-xwiki-vulnerability
Scores
CVSS v4
9.2
EPSS
0.0016
EPSS Percentile
37.2%
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
total
Details
CWE
CWE-285
Status
published
Products (2)
org.xwiki.contrib.oidc/oidc-authenticator
2.17.1 - 2.18.2Maven
xwiki-contrib/oidc
>= 2.17.1, < 2.18.2
Published
Oct 06, 2025
Tracked Since
Feb 18, 2026