XWiki Platform: Privilege escalation from edit to script right through Live Data editing
Summary
| CVE | CVE-2026-53966 |
|---|---|
| State | PUBLISHED |
| Assigner | GitHub_M |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-09-15 15:17:17 UTC |
| Updated | 2026-09-15 19:17:20 UTC |
| 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. |
Risk And Classification
Primary CVSS: v4.0 7.1 HIGH from [email protected]
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Problem Types: CWE-862 | CWE-862 CWE-862: Missing Authorization
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | [email protected] | Secondary | 7.1 | HIGH | 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/E:X/C... |
| 4.0 | CNA | DECLARED | 7.1 | HIGH | 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 |
CVSS v4.0 Breakdown
Attack Vector
NetworkAttack Complexity
LowAttack Requirements
NonePrivileges Required
LowUser Interaction
NoneConfidentiality
NoneIntegrity
HighAvailability
NoneSub Conf.
NoneSub Integrity
NoneSub Availability
NoneCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Xwiki | Xwiki-platform | affected >= 13.4-rc-1, < 16.10.17 | Not specified |
| CNA | Xwiki | Xwiki-platform | affected >= 17.0.0-rc-1, < 17.4.10 | Not specified |
| CNA | Xwiki | Xwiki-platform | affected >= 17.5.0-rc-1, < 17.10.4 | Not specified |
| CNA | Xwiki | Xwiki-platform | affected >= 18.0.0-rc-1, < 18.1.0-rc-1 | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| github.com/xwiki/xwiki-platform/security/advisories/GHSA-45ph-gxxr-gwgw | [email protected] | github.com | |
| github.com/xwiki/xwiki-platform/commit/1ddb954767e50782be960b953b012c124... | [email protected] | github.com | |
| github.com/xwiki/xwiki-platform/commit/fbad7dac8f46c560577e41b9259cbbbbd... | [email protected] | github.com | |
| jira.xwiki.org/browse/XWIKI-23986 | [email protected] | jira.xwiki.org | |
| github.com/xwiki/xwiki-platform/releases/tag/xwiki-platform-16.10.17 | [email protected] | github.com | |
| github.com/xwiki/xwiki-platform/releases/tag/xwiki-platform-17.4.10 | [email protected] | github.com | |
| github.com/xwiki/xwiki-platform/commit/778b82b4806ce7ebddb775f953545ff73... | [email protected] | github.com | |
| github.com/xwiki/xwiki-platform/releases/tag/xwiki-platform-17.10.4 | [email protected] | github.com | |
| github.com/xwiki/xwiki-platform/releases/tag/xwiki-platform-18.1.0-rc-1 | [email protected] | github.com | |
| github.com/xwiki/xwiki-platform/commit/448b0f074cc6711410eb2647c4740454c... | [email protected] | github.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.