CVE-2023-30537 org.xwiki.platform:xwiki-platform-flamingo-theme-ui vulnerable to privilege escalation
Users with page editing rights can execute arbitrary code via improper escaping in theme styles, leading to full system access.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-30537?
CVE-2023-30537 is a critical code injection vulnerability in Xwiki Xwiki, published on 16 Apr 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Which versions are affected by CVE-2023-30537?
6 open source packages ship an affected version, including org.xwiki.platform:xwiki-platform-flamingo-theme-ui. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
org.xwiki.platform:xwiki-platform-flamingo-theme-ui Maven | From 12.6.6 | 13.10.11 |
org.xwiki.platform:xwiki-platform-flamingo-theme-ui Maven | From 12.6.6 | 13.10.11 |
org.xwiki.platform:xwiki-platform-flamingo-theme-ui Maven | From 14.0-rc-1 | 14.4.7 |
org.xwiki.platform:xwiki-platform-flamingo-theme-ui Maven | From 14.0-rc-1 | 14.4.7 |
org.xwiki.platform:xwiki-platform-flamingo-theme-ui Maven | From 14.5 | 14.10 |
org.xwiki.platform:xwiki-platform-flamingo-theme-ui Maven | From 14.5 | 14.10 |
Products include Xwiki Xwiki.
How do I fix CVE-2023-30537?
Upgrade org.xwiki.platform:xwiki-platform-flamingo-theme-ui to a fixed version for your release line: 13.10.11, 14.4.7 or 14.10.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2023-30537 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-30537 exists.
Other vulnerabilities in Xwiki Xwiki
- CVE-2025-24893 XWiki Platform Eval Injection
- CVE-2025-53836 XWiki Rendering is vulnerable to RCE attacks when processing nested macros
- CVE-2024-55662 XWiki allows remote code execution through the extension sheet
- CVE-2024-55877 XWiki allows remote code execution from account through macro descriptions and XWiki.XWikiSyntaxMacrosList
- CVE-2024-37901 XWiki Platform vulnerable to remote code execution from account via SearchSuggestConfigSheet
Sources
Also known as GHSA-vrr8-fp7c-7qgp.