GHSA-w4fj-87j5-f25c

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

At a glance

Published
Updated
CVE
CVE-2026-40105
CVSS_V3
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS_V4
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

Description

### Impact A reflected cross-site scripting vulnerability (XSS) in the compare 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. ### Patches The problem has been patched by properly escaping the URL parameters. ### Workarounds The [patch](https://github.com/xwiki/xwiki-platform/commit/3c8a2ec985641367015c2db937574fcd360c788c#diff-a5e75a4e3820a63c02a32666dda67c73ee7885ab8e7f67e52cfcb3be5a13326e) can be applied manually to `templates/changesdoc.vm` in the deployed WAR. ### Attribution XWiki thanks Mike Cole @mikecole-mg for discovering and reporting this vulnerability.

Affected packages

PackageVersions
Maven · org.xwiki.platform:xwiki-platform-web-templatesintroduced 10.4-rc-1, fixed 16.10.16
Maven · org.xwiki.platform:xwiki-platform-web-templatesintroduced 17.0.0-rc-1, fixed 17.4.8
Maven · org.xwiki.platform:xwiki-platform-web-templatesintroduced 17.5.0-rc-1, fixed 17.10.1

References

Sources

SourceLicence
OSV.devCC-BY 4.0 — GitHub Advisory Database