XWiki OIDC Authenticator: Users with "view" access can create tokens for any users they can view

CRITICAL 9.2CVE-2025-49594 · GHSA-f2hf-pfrj-vrm7 · Published 06/10/2025 · updated 09/10/2026

In short

CVE-2025-49594 is a CRITICAL (CVSS 9.2) vulnerability affecting org.xwiki.contrib.oidc:oidc-authenticator.
Chance of exploitation in the next 30 days (EPSS): 0.44%, higher than 38.4% of all vulnerabilities.
Fix: update to 2.18.2 or later.

Package	Affected versions	Patched versions
org.xwiki.contrib.oidc:oidc-authenticator Maven	`≥ 2.17.1, < 2.18.2`	`2.18.2`

Description

Impact

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).

Patches

Version 2.18.2.

Workarounds

The only workaround is to disable token access.

References

For more information

If you have any questions or comments about this advisory:

Open an issue in Jira XWiki.org
Email us at Security Mailing List

NVD description

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.