CVE-2026-53966: Xwiki platform livedata livetable XWiki Platform Live Data Live Vulnerability

HIGH
Advisory Identifier: GHSA-45ph-gxxr-gwgw
Share
CWE-862
Published
Advisory Summary

CVE-2026-53966 is a HIGH xwiki platform live data live vulnerability (CWE-862: Missing Authorization) affecting Xwiki platform livedata livetable libraries in the Maven ecosystem. The issue involves xwiki platform live data live table connector has privilege escalation from edit to script right through live data editing. Remediation is available by upgrading affected packages to version 16.10.17, 17.4.10, 17.10.4, 18.1.0-rc-1.

CVE-2026-53966 at a Glance

CVE Identifier CVE-2026-53966
GHSA Identifier GHSA-45ph-gxxr-gwgw
Severity HIGH
CVSS v3.1 Base Score N/A
CWE Classification CWE-862: Missing Authorization
Affected Product Xwiki platform livedata livetable
Package Ecosystem Maven
Published Date
Last Updated

How to Fix CVE-2026-53966

To remediate this vulnerability, upgrade all affected Xwiki platform livedata livetable dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

org.xwiki.platform:xwiki-platform-livedata-livetable fixed: 16.10.17 
<dependency>
    <groupId>org.xwiki.platform</groupId>
    <artifactId>xwiki-platform-livedata-livetable</artifactId>
    <version>16.10.17</version>
</dependency>
org.xwiki.platform:xwiki-platform-livedata-livetable fixed: 17.4.10 
<dependency>
    <groupId>org.xwiki.platform</groupId>
    <artifactId>xwiki-platform-livedata-livetable</artifactId>
    <version>17.4.10</version>
</dependency>
org.xwiki.platform:xwiki-platform-livedata-livetable fixed: 17.10.4 
<dependency>
    <groupId>org.xwiki.platform</groupId>
    <artifactId>xwiki-platform-livedata-livetable</artifactId>
    <version>17.10.4</version>
</dependency>
org.xwiki.platform:xwiki-platform-livedata-livetable fixed: 18.1.0-rc-1 
<dependency>
    <groupId>org.xwiki.platform</groupId>
    <artifactId>xwiki-platform-livedata-livetable</artifactId>
    <version>18.1.0-rc-1</version>
</dependency>
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree -Dincludes=org.xwiki.platform

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-53966, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.xwiki.platform

Analyze the terminal output to locate any version of Xwiki platform livedata livetable in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 16.10.17), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.xwiki.platform command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-862: Missing Authorization, where the product does not perform an authorization check when an actor attempts to access a resource or perform an action. In Xwiki platform livedata livetable, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Impact Any user who can edit a page in XWiki can use Live Data's edit REST API in XWiki to change the rights on that page. This allows the user to obtain script right on the page. Script right allows the user to execute potentially dangerous Velocity scripts and send unfiltered HTML and JavaScript to the client. If there are other security checks, e.g., in extensions, implemented as listeners to `UserUpdatingDocumentEvent` and similar `User…` events, these checks can be circumvented, too. ### Patches This vulnerability has been patched by properly calling all checks in Live Data in XWiki 16.10.17, 17.4.10, 17.10.4 and 18.1.0. ### Workarounds We're not aware of any workarounds apart from upgrading.

CVE-2026-53966 Affected Xwiki platform livedata livetable Versions

4 component(s)
Fixed Versions:
16.10.1717.4.1017.10.418.1.0-rc-1
Product / Package Ecosystem Affected Versions Fixed Version
org.xwiki.platform:xwiki-platform-livedata-livetable
maven/org.xwiki.platform/xwiki-platform-livedata-livetable
Maven
≥ 13.4-rc-1
< 16.10.17
16.10.17
org.xwiki.platform:xwiki-platform-livedata-livetable
maven/org.xwiki.platform/xwiki-platform-livedata-livetable
Maven
≥ 17.0.0-rc-1
< 17.4.10
17.4.10
org.xwiki.platform:xwiki-platform-livedata-livetable
maven/org.xwiki.platform/xwiki-platform-livedata-livetable
Maven
≥ 17.5.0-rc-1
< 17.10.4
17.10.4
org.xwiki.platform:xwiki-platform-livedata-livetable
maven/org.xwiki.platform/xwiki-platform-livedata-livetable
Maven
≥ 18.0.0-rc-1
< 18.1.0-rc-1
18.1.0-rc-1

References

GitHub Advisory / Wiki ADVISORY
https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-45ph-gxxr-gwgw
Security Fix Commit FIX COMMIT
https://github.com/xwiki/xwiki-platform/commit/448b0f074cc6711410eb2647c4740454c92d1626
Xwiki platform livedata livetable Source Repository REPOSITORY
https://github.com/xwiki/xwiki-platform
jira.xwiki.org/browse/xwiki-23986 WEB
https://jira.xwiki.org/browse/XWIKI-23986

Frequently Asked Questions

What is CVE-2026-53966?
CVE-2026-53966 is a security vulnerability in Xwiki platform livedata livetable involving XWiki Platform Live Data Live Table Connector has privilege escalation from edit to script right through Live Data editing under CWE-862: Missing Authorization.
Which Xwiki platform livedata livetable versions are affected?
Affected versions include releases prior to 16.10.17, 17.4.10, 17.10.4, 18.1.0-rc-1 across affected packages: org.xwiki.platform:xwiki-platform-livedata-livetable.
What version fixes CVE-2026-53966?
Upgrading to 16.10.17, 17.4.10, 17.10.4, 18.1.0-rc-1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is xwiki-platform-livedata-livetable affected?
Yes, org.xwiki.platform:xwiki-platform-livedata-livetable is affected in releases prior to 16.10.17, 17.4.10, 17.10.4, 18.1.0-rc-1. Upgrade your dependency to 16.10.17, 17.4.10, 17.10.4, 18.1.0-rc-1 or later.
What CWE is associated with CVE-2026-53966?
CVE-2026-53966 is classified under CWE-862: Missing Authorization (The product does not perform an authorization check when an actor attempts to access a resource or perform an action.).
How can I check Maven dependencies for CVE-2026-53966?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.xwiki.platform'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-45ph-gxxr-gwgw",
  "modified" : "2026-08-19T19:18:04Z",
  "published" : "2026-08-19T19:18:04Z",
  "aliases" : [ "CVE-2026-53966" ],
  "summary" : "XWiki Platform Live Data Live Table Connector has privilege escalation from edit to script right through Live Data editing",
  "details" : "### Impact\nAny user who can edit a page in XWiki can use Live Data's edit REST API in XWiki to change the rights on that page. This allows the user to obtain script right on the page. Script right allows the user to execute potentially dangerous Velocity scripts and send unfiltered HTML and JavaScript to the client. If there are other security checks, e.g., in extensions, implemented as listeners to `UserUpdatingDocumentEvent` and similar `User…` events, these checks can be circumvented, too.\n\n### Patches\nThis vulnerability has been patched by properly calling all checks in Live Data in XWiki 16.10.17, 17.4.10, 17.10.4 and 18.1.0.\n\n### Workarounds\nWe're not aware of any workarounds apart from upgrading.",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "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"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.xwiki.platform:xwiki-platform-livedata-livetable"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "13.4-rc-1"
      }, {
        "fixed" : "16.10.17"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.xwiki.platform:xwiki-platform-livedata-livetable"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "17.0.0-rc-1"
      }, {
        "fixed" : "17.4.10"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.xwiki.platform:xwiki-platform-livedata-livetable"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "17.5.0-rc-1"
      }, {
        "fixed" : "17.10.4"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.xwiki.platform:xwiki-platform-livedata-livetable"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "18.0.0-rc-1"
      }, {
        "fixed" : "18.1.0-rc-1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-45ph-gxxr-gwgw"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/xwiki/xwiki-platform/commit/448b0f074cc6711410eb2647c4740454c92d1626"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/xwiki/xwiki-platform"
  }, {
    "type" : "WEB",
    "url" : "https://jira.xwiki.org/browse/XWIKI-23986"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-862" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-08-19T19:18:04Z",
    "nvd_published_at" : null
  }
}