CVE-2026-40105

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

State: Published
Severity: 6.5 Medium
Published: Apr 15, 2026
Updated: Apr 15, 2026
Reserved: Apr 9, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	6.5 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H	GitHub_M

Weaknesses

CWE-80 Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)

Affected Products

Product	Versions
xwiki-platformxwiki	>= 10.4-rc-1, < 16.10.16Affected >= 17.0.0-rc-1, < 17.4.8Affected >= 17.5.0-rc-1, < 17.10.1Affected

References

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