CVE-2025-49594
XWiki OIDC Authenticator: Users with "view" access can create tokens for any users they can view
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 * https://jira.xwiki.org/browse/OIDC-240 * https://github.com/xwiki-contrib/oidc/commit/d90d717172283aaa96bb5bb44e357f910ae64adb ### For more information If you have any questions or comments about this advisory: * Open an issue in [Jira XWiki.org](https://jira.xwiki.org/) * Email us at [Security Mailing List](mailto:security@xwiki.org)
How to fix CVE-2025-49594
To remediate CVE-2025-49594, upgrade the affected package to a fixed version below.
- —upgrade to 2.18.2 or later
Is CVE-2025-49594 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 2.17.1, < 2.18.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | 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 |