Vulnerability Description
XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Versions 10.4-rc-1, through 16.10.15, 17.0.0-rc-1, through 17.4.7 and 17.5.0-rc-1 through 17.10.0 contain a reflected cross-site scripting vulnerability (XSS) in the comparison view between revisions of a page allows executing JavaScript code in the user's browser. If the current user is an admin, this can not only affect the current user but also the confidentiality, integrity and availability of the whole XWiki instance. If developers are unable to update immediately, they can apply the patch manually to templates/changesdoc.vm in the deployed WAR.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Xwiki | Xwiki | >= 10.4, < 16.10.16 |
Related Weaknesses (CWE)
References
- https://github.com/xwiki/xwiki-platform/commit/3c8a2ec985641367015c2db937574fcd3Patch
- https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-w4fj-87j5-f25cVendor Advisory
- https://jira.xwiki.org/browse/XWIKI-23472Vendor Advisory
FAQ
What is CVE-2026-40105?
CVE-2026-40105 is a vulnerability with a CVSS score of 6.1 (MEDIUM). XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Versions 10.4-rc-1, through 16.10.15, 17.0.0-rc-1, through 17.4.7 and 17.5.0-rc-1 through 17.1...
How severe is CVE-2026-40105?
CVE-2026-40105 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-40105?
Check the references section above for vendor advisories and patch information. Affected products include: Xwiki Xwiki.