CVE-2026-40105

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

Published Apr 15, 2026 CVSS 4.0 · 6.5 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-w4fj-87j5-f25c XWiki has Reflected Cross-Site Scripting (XSS) in page history compare
History
Type Values Removed Values Added
First Time appeared Xwiki xwiki
CPEs cpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:*
Vendors & Products Xwiki xwiki
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Xwiki
Xwiki xwiki-platform
Vendors & Products Xwiki
Xwiki xwiki-platform
Type Values Removed Values Added
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.
Title XWiki has Reflected Cross-Site Scripting (XSS) in its page history compare functionality
Weaknesses CWE-80
References
Metrics cvssV4_0

{'score': 6.5, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Apr 15, 2026, 4:13 PM
Reserved
Apr 9, 2026, 1:41 AM
Status
Analyzed
Published
Apr 15, 2026, 4:17 AM
Modified
Oct 26, 2026, 9:10 PM