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CVE-2026-53966

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

CVSS 4.0 7.1 HIGHCheck source for fixed versionsKEV status unknown
Original advisory

cve-program · CVE-2026-53966

Published

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.

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Affected versions, risk and source history

Exploitation and risk

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Advisory history

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23 Oct 2026 15:48:27 UTC

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

cve-program · CVE-2026-53966 · Published

ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 13 Nov 13:11 UTC · 274 of 275 readable · 273 fully read · documentation 469/469 current

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