---
id: CVE-2026-53966
title: XWiki Platform is a generic wiki platform
summary: >-
  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…
severity: high
cvss: 7.1
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N'
cwe:
  - CWE-862
vendor: xwiki
product: xwiki-platform
affected:
  - 'xwiki-platform >= 13.4-rc-1, < 16.10.17'
  - 'xwiki-platform >= 17.0.0-rc-1, < 17.4.10'
  - 'xwiki-platform >= 17.5.0-rc-1, < 17.10.4'
  - 'xwiki-platform >= 18.0.0-rc-1, < 18.1.0-rc-1'
patched:
  - 'org.xwiki.platform:xwiki-platform-livedata-livetable 16.10.17'
  - 'org.xwiki.platform:xwiki-platform-livedata-livetable 17.4.10'
  - 'org.xwiki.platform:xwiki-platform-livedata-livetable 17.10.4'
  - 'org.xwiki.platform:xwiki-platform-livedata-livetable 18.1.0-rc-1'
published: '2026-09-15'
updated: '2026-09-15'
sourceUpdated: '2026-09-15T19:17:20.243'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-53966'
references:
  - url: >-
      https://github.com/xwiki/xwiki-platform/commit/1ddb954767e50782be960b953b012c1242f6843b
    label: security-advisories@github.com
  - url: >-
      https://github.com/xwiki/xwiki-platform/commit/448b0f074cc6711410eb2647c4740454c92d1626
    label: security-advisories@github.com
  - url: >-
      https://github.com/xwiki/xwiki-platform/commit/778b82b4806ce7ebddb775f953545ff73b841f8b
    label: security-advisories@github.com
  - url: >-
      https://github.com/xwiki/xwiki-platform/commit/fbad7dac8f46c560577e41b9259cbbbbd343e6fc
    label: security-advisories@github.com
  - url: >-
      https://github.com/xwiki/xwiki-platform/releases/tag/xwiki-platform-16.10.17
    label: security-advisories@github.com
  - url: >-
      https://github.com/xwiki/xwiki-platform/releases/tag/xwiki-platform-17.10.4
    label: security-advisories@github.com
  - url: >-
      https://github.com/xwiki/xwiki-platform/releases/tag/xwiki-platform-17.4.10
    label: security-advisories@github.com
  - url: >-
      https://github.com/xwiki/xwiki-platform/releases/tag/xwiki-platform-18.1.0-rc-1
    label: security-advisories@github.com
  - url: >-
      https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-45ph-gxxr-gwgw
    label: security-advisories@github.com
  - url: 'https://jira.xwiki.org/browse/XWIKI-23986'
    label: security-advisories@github.com
  - url: 'https://github.com/advisories/GHSA-45ph-gxxr-gwgw'
tags:
  - nvd
  - cve.org
  - ghsa
  - maven
aliases:
  - GHSA-45ph-gxxr-gwgw
ecosystem: maven
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-15T17:38:26.447862Z'
cvssSource: cna
ingestedAt: '2026-08-19T19:44:02.865Z'
epss: 0.00768
epssPercentile: 0.53681
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Package advisory (CVE-2026-53966)

Affected packages:

- `org.xwiki.platform:xwiki-platform-livedata-livetable >= 13.4-rc-1, < 16.10.17`
- `org.xwiki.platform:xwiki-platform-livedata-livetable >= 17.0.0-rc-1, < 17.4.10`
- `org.xwiki.platform:xwiki-platform-livedata-livetable >= 17.5.0-rc-1, < 17.10.4`
- `org.xwiki.platform:xwiki-platform-livedata-livetable >= 18.0.0-rc-1, < 18.1.0-rc-1`

Patched in:

- `org.xwiki.platform:xwiki-platform-livedata-livetable 16.10.17`
- `org.xwiki.platform:xwiki-platform-livedata-livetable 17.4.10`
- `org.xwiki.platform:xwiki-platform-livedata-livetable 17.10.4`
- `org.xwiki.platform:xwiki-platform-livedata-livetable 18.1.0-rc-1`

Source: https://github.com/advisories/GHSA-45ph-gxxr-gwgw