XWiki Platform vulnerable to code injection from view right on XWiki.ClassSheet
Impact
Any user with view rights 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. The attack works by opening a non-existing page with a name crafted to contain a dangerous payload.
For instance: Open <xwiki-host>/xwiki/bin/view/%22%2F%7D%7D%7B%7B%2Fhtml%7D%7D%20%7B%7Basync%20async%3D%22true%22%20cached%3D%22false%22%20context%3D%22doc.reference%22%7D%7D%7B%7Bgroovy%7D%7Dprintln(%22Hello%20%22%20%2B%20%22from%20groovy!%22)%7B%7B%2Fgroovy%7D%7D%7B%7B%2Fasync%7D%7D?sheet=XWiki.ClassSheet&xpage=view, where <xwiki-host> is the URL of your XWiki installation.
Patches
This has been patched in XWiki 14.4.8, 14.10.3 and 15.0RC1.
Workarounds
The fix is only impacting Velocity templates and page contents, so applying this patch is enough to fix the issue.
References
- https://github.com/xwiki/xwiki-platform/commit/d7e56185376641ee5d66477c6b2791ca8e85cfee
- https://jira.xwiki.org/browse/XWIKI-20456
For more information
If you have any questions or comments about this advisory:
- Open an issue in Jira XWiki.org
- Email us at Security Mailing List
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | org.xwiki.platform:xwiki-platform-xclass-ui | >= 7.0-rc-1, < 14.4.8, >= 14.5, < 14.10.3 | 14.4.8, 14.10.3 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H- Weakness (CWE)
CWE-74- Platform
- Java / Kotlin (Maven)
- Package
org.xwiki.platform:xwiki-platform-xclass-ui- Disclosed
- 20.04.2023
- Updated
- 11.10.2026 13:20
Sources and licenses
OSV / GitHub Advisory Database - GHSA-mjw9-3f9f-jq2w - CC BY 4.0
Vulnerability history: org.xwiki.platform:xwiki-platform-xclass-ui
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
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