CVE-2026-53966

XWiki Platform: Privilege escalation from edit to script right through Live Data editing

Published: Sep 15, 2026Updated: Sep 15, 2026 Sources: CVE List NVDCWE-862

N/ACVSS

NVD MITRE

Description

XWiki Platform is a generic wiki platform. From 13.4-rc-1 until 16.10.17, 17.4.10, 17.10.4, and 18.1.0-rc-1, the Live Data edit REST API allows a user who can edit a page to change that page's rights without executing the normal document-saving authorization checks. The user can grant script right and then execute potentially dangerous Velocity scripts or send unfiltered HTML and JavaScript to clients. The same missing checks can circumvent extension security controls implemented as listeners for UserUpdatingDocumentEvent and related user document events. This issue is fixed in versions 16.10.17, 17.4.10, 17.10.4, and 18.1.0-rc-1.

No summary for this CVE yet.

Weaknesses

CWE-862

Affected Products

xwiki

oss-project·FRaka xwiki-commons, xwiki-platform

xwiki-platformOn-premWeb App

Web & CMS Plugins / cms-core

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

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Products CVE Techniques Tactics

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2 techniques

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References

https://github.com/xwiki/xwiki-platform/commit/1ddb954767e50782be960b953b012c1242f6843b

github.com

https://github.com/xwiki/xwiki-platform/commit/448b0f074cc6711410eb2647c4740454c92d1626

github.com

https://github.com/xwiki/xwiki-platform/commit/778b82b4806ce7ebddb775f953545ff73b841f8b

github.com

and 7 more references View all →

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