XWiki Platform vulnerable to Code Injection in icon themes

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

9.9 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS

• CVE-2023-36470: 1.93% estimated exploitation activity in the next 30 days; percentile 80.05 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Impact By either creating a new or editing an existing document with an icon set, an attacker can inject XWiki syntax and Velocity code that is executed with programming rights and thus allows remote code execution. There are different attack vectors, the simplest is the Velocity code in the icon set's HTML or XWiki syntax definition. The icon picker can be used to trigger the rendering of any icon set. The XWiki syntax variant of the icon set is also used without any escaping in some documents, allowing to inject XWiki syntax including script macros into a document that might have programming right, for this the currently used icon theme needs to be edited. Further, the HTML output of the icon set is output as JSON in the icon picker and this JSON is interpreted as XWiki syntax, allowing again the injection of script macros into a document with programming right and thus allowing remote code execution. This impacts the confidentiality, integrity and availability of the whole XWiki…

Published by the source

30 Jun 2023, 20:41 UTC

Last modified by the source

12 Nov 2023, 05:05 UTC

Source last checked

26 Oct 2026, 16:19 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-fm68-j7ww-h9xf

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# Patch Next advisory brief: CVE-2023-36470

Advisory: XWiki Platform vulnerable to Code Injection in icon themes
IDs: CVE-2023-36470, GHSA-fm68-j7ww-h9xf
Record: https://patchnext.com/advisories/cve-2023-36470 (revision 1, source checked 26 Oct 2026, 16:19 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Critical (CVSS 9.9)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: org.xwiki.platform:xwiki-platform-icon-default 15.2-rc-1, 14.10.6; org.xwiki.platform:xwiki-platform-icon-script 15.2-rc-1, 14.10.6; org.xwiki.platform:xwiki-platform-icon-ui 15.2-rc-1, 14.10.6. A vendor fix does not mean a deployment is fixed.

## Affected components
- Maven org.xwiki.platform:xwiki-platform-icon-default: affected >= 6.2-milestone-1, < 14.10.6; >= 15.0-rc-1, < 15.2-rc-1; fixed in 15.2-rc-1, 14.10.6
- Maven org.xwiki.platform:xwiki-platform-icon-script: affected >= 6.2-milestone-1, < 14.10.6; >= 15.0-rc-1, < 15.2-rc-1; fixed in 15.2-rc-1, 14.10.6
- Maven org.xwiki.platform:xwiki-platform-icon-ui: affected >= 6.2-milestone-1, < 14.10.6; >= 15.0-rc-1, < 15.2-rc-1; fixed in 15.2-rc-1, 14.10.6

## Suggested inspection (read-only)
- Maven org.xwiki.platform:xwiki-platform-icon-default: check the installed version with your package manager.
- Maven org.xwiki.platform:xwiki-platform-icon-script: check the installed version with your package manager.
- Maven org.xwiki.platform:xwiki-platform-icon-ui: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on org.xwiki.platform:xwiki-platform-icon-default, org.xwiki.platform:xwiki-platform-icon-script, org.xwiki.platform:xwiki-platform-icon-ui.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-fm68-j7ww-h9xf (GitHub-reviewed advisory GHSA-fm68-j7ww-h9xf lists affected ranges: Maven org.xwiki.platform:xwiki-platform-icon-default >=6.2-milestone-1 =15.0-rc-1 =6.2-milestone-1 =15.0-rc-1 =6.2-milestone-1 =15.0-rc-1 <15.2-rc-1)

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