CVE-2023-27479 Improper Neutralization of Directives in Dynamically Evaluated Code in org.xwiki.platform:xwiki-platform-panels-ui

What is CVE-2023-27479?

CVE-2023-27479 is a critical code injection vulnerability in Xwiki Xwiki, published on 7 Mar 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. In affected versions any user with view rights 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 UIX parameters. A proof of concept exploit is to log in, add an `XWiki.UIExtensionClass` xobject to the user profile page, with an Extension Parameters content containing `label={{/html}} {{async async="true" cached="false" context="doc.reference"}}{{groovy}}println("Hello " + "from groovy!"){{/groovy}}{{/async}}`. Then, navigating to `PanelsCode.ApplicationsPanelConfigurationSheet` (i.e., `<xwiki-host>/xwiki/bin/view/PanelsCode/ApplicationsPanelConfigurationSheet` where `<xwiki-host>` is the URL of your XWiki installation) should not execute the Groovy script. If it does, you will see `Hello from groovy!` displayed on the screen. This vulnerability has been patched in XWiki 13.10.11, 14.4.7 and 14.10-rc-1. Users are advised to upgrade. For users unable to upgrade the issue can be fixed by editing the `PanelsCode.ApplicationsPanelConfigurationSheet` wiki page and making the same modifications as shown in commit `6de5442f3c`.

Weakness: CWE-74

Which versions are affected by CVE-2023-27479?

6 open source packages ship an affected version, including org.xwiki.platform:xwiki-platform-panels-ui. It affects 1 product.

Products include Xwiki Xwiki.

How do I fix CVE-2023-27479?

Upgrade org.xwiki.platform:xwiki-platform-panels-ui to a fixed version for your release line: 14.4.7, 14.10-rc-1 or 13.10.11.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2023-27479 being exploited?

There is no known exploitation of CVE-2023-27479 in the wild and no public exploit code.

Other vulnerabilities in Xwiki Xwiki

• CVE-2025-24893 XWiki Platform Eval Injection Exploited Critical 9.8
• CVE-2025-53836 XWiki Rendering is vulnerable to RCE attacks when processing nested macros Critical 10.0
• CVE-2024-55662 XWiki allows remote code execution through the extension sheet Critical 10.0
• CVE-2024-55877 XWiki allows remote code execution from account through macro descriptions and XWiki.XWikiSyntaxMacrosList Critical 10.0
• CVE-2024-37901 XWiki Platform vulnerable to remote code execution from account via SearchSuggestConfigSheet Critical 10.0

All Xwiki Xwiki vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-qxjg-jhgw-qhrv.