Vulnerability Description
XWiki Platform is a generic wiki platform. A vulnerability in versions from 5.0 to 16.7.1 affects users with Message Stream enabled and a wiki configured as closed from selecting "Prevent unregistered users to view pages" in the Administrations Rights. The vulnerability is that any message sent in a subwiki to "everyone" is actually sent to the farm: any visitor of the main wiki will be able to see that message through the Dashboard, even if the subwiki is configured to be private. This issue will not be patched as Message Stream has been deprecated in XWiki 16.8.0RC1 and is not maintained anymore. A workaround for this issue involves keeping Message Stream disabled by default. It's advised to keep it disabled from Administration > Social > Message Stream.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Xwiki | Xwiki | >= 5.0, <= 16.7.1 |
Related Weaknesses (CWE)
References
- https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-42fh-pvvh-999xVendor Advisory
- https://jira.xwiki.org/browse/XWIKI-17154ExploitIssue TrackingVendor Advisory
- https://jira.xwiki.org/browse/XWIKI-17154ExploitIssue TrackingVendor Advisory
FAQ
What is CVE-2025-32783?
CVE-2025-32783 is a vulnerability with a CVSS score of 4.7 (MEDIUM). XWiki Platform is a generic wiki platform. A vulnerability in versions from 5.0 to 16.7.1 affects users with Message Stream enabled and a wiki configured as closed from selecting "Prevent unregistered...
How severe is CVE-2025-32783?
CVE-2025-32783 has been rated MEDIUM with a CVSS base score of 4.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-32783?
Check the references section above for vendor advisories and patch information. Affected products include: Xwiki Xwiki.