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CVE-2026-40105

XWiki has Reflected Cross-Site Scripting (XSS) in its page history compare functionality

Published: Apr 15, 2026Updated: Apr 23, 2026 Sources: CVE List NVD BDUCWE-80
NVD MITRE
6.1CVSSMEDIUM
EPSS Score
0.5%
Top 58.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Am I actually vulnerable?1 Nuclei template available — see how to check your systems. How to verify

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 Vector Breakdown

AV:NAC:LPR:NUI:RS:CC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-80

Affected Products

xwiki-platformxwiki
On-premWeb App
Web & CMS Plugins / cms-core
XWiki PlatformСообщество свободного программного обеспечения
On-prem
Operating Systems / linux-distro
xwikixwiki
On-premWeb App
Web & CMS Plugins / cms-core
xwikioss-projectFRWeb & CMS Pluginsaka xwiki-platform, xwiki-commons
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf

Exploitability

Official Patch Available

References

https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-w4fj-87j5-f25c
github.com
https://github.com/xwiki/xwiki-platform/commit/3c8a2ec985641367015c2db937574fcd360c788c
github.com
https://jira.xwiki.org/browse/XWIKI-23472
jira.xwiki.org
and 2 more references View all →

Timeline

Published
Apr 15, 2026
Last Updated
Apr 23, 2026

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