Answer in brief
CVE-2026-53966 records a High severity vulnerability in XWiki Platform: Privilege escalation from edit to script right through Live Data editing. The current sources do not mark it as known exploited. The current feed maps xwiki/xwiki-platform (generic), org.xwiki.platform:xwiki-platform-livedata-livetable (maven), org.xwiki.platform:xwiki-platform-livedata-livetable (maven), org.xwiki.platform:xwiki-platform-livedata-livetable (maven) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps xwiki/xwiki-platform (generic), org.xwiki.platform:xwiki-platform-livedata-livetable (maven), org.xwiki.platform:xwiki-platform-livedata-livetable (maven), org.xwiki.platform:xwiki-platform-livedata-livetable (maven) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| xwiki/xwiki-platformgeneric | >= 13.4-rc-1, < 16.10.17 || >= 17.0.0-rc-1, < 17.4.10 || >= 17.5.0-rc-1, < 17.10.4 || >= 18.0.0-rc-1, < 18.1.0-rc-1 | Not reported |
| org.xwiki.platform:xwiki-platform-livedata-livetablemaven | >=13.4-rc-1 <16.10.17 | 16.10.17 |
| org.xwiki.platform:xwiki-platform-livedata-livetablemaven | >=17.0.0-rc-1 <17.4.10 | 17.4.10 |
| org.xwiki.platform:xwiki-platform-livedata-livetablemaven | >=17.5.0-rc-1 <17.10.4 | 17.10.4 |
| org.xwiki.platform:xwiki-platform-livedata-livetablemaven | >=18.0.0-rc-1 <18.1.0-rc-1 | 18.1.0-rc-1 |
| org.xwiki.platform:xwiki-platform-livedata-livetablemaven | >=13.4-rc-1,<16.10.17 | 16.10.17 |
| org.xwiki.platform:xwiki-platform-livedata-livetablemaven | >=17.0.0-rc-1,<17.4.10 | 17.4.10 |
| org.xwiki.platform:xwiki-platform-livedata-livetablemaven | >=17.5.0-rc-1,<17.10.4 | 17.10.4 |
| org.xwiki.platform:xwiki-platform-livedata-livetablemaven | >=18.0.0-rc-1,<18.1.0-rc-1 | 18.1.0-rc-1 |
Published upstream
Sep 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 19, 2026
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.
Quoted source text, attributed separately from HOL analysis.