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

Summary

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`.

Timeline

1. Mar 7, 2023, 6:09 PM UTCCVE published
2. Feb 25, 2025, 2:29 PM UTCCISA SSVC assessment

   Exploitation: none · Automatable: no · Technical impact: total

3. Feb 25, 2025, 3:00 PM UTCRecord last updated

Affected versions

• xwiki xwiki-platform

  From 6.3-milestone-2 · fixed in 13.10.11; From 14.0.0 · fixed in 14.4.7; From 14.5.0 · fixed in 14.10-rc-1

• org.xwiki.platform:xwiki-platform-panels-uiMaven

  From 6.3-milestone-2 · fixed in 13.10.11

• org.xwiki.platform:xwiki-platform-panels-uiMaven

  From 14.0 · fixed in 14.4.7

• org.xwiki.platform:xwiki-platform-panels-uiMaven

  From 14.5 · fixed in 14.10-rc-1

References 3