CVE

CVE-2026-40105

6.5

CVSSmedium

Exploitable remotely over the internet · no authentication required.

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.

Attack Vector

Network

Privileges Req.

None

User Interaction

xwiki-platform

Updated Nov 10, 2026View on NVD →

S4E scanner

mediumWeb Vulnerabilities~10 seconds

XWiki - Cross-Site Scripting

XWiki is vulnerable to reflected Cross-Site Scripting (XSS) via the `viewer=changes` endpoint. The `rev2` parameter is not properly sanitised before being rendered in the response, allowing an attacker to inject arbitrary JavaScript. Affects XWiki versions prior to the patched release. References: https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-w4fj-87j5-f25c https://nvd.nist.gov/vuln/detail/CVE-2026-40105 https://jira.xwiki.org/browse/XWIKI-22481 Remediation: Update to a version later than 17.10.0 or apply the patch to templates/changesdoc.vm manually.

url

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CVE history: xwiki-platform

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