CVE-2026-53966

In XWiki Platform (a generic wiki platform), the Live Data edit REST API fails to perform normal document-saving authorization checks when a user modifies page rights. Any user with edit permission can escalate to script right, enabling execution of potentially dangerous Velocity scripts or deliv...

CVE-2026-53966 XWiki Platform: Privilege escalation from edit to script right through Live Data editing

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 righ...