GHSA-r279-47wg-chpr
CRITICALXWiki allows RCE from script right in configurable sections
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
Blast Radius
org.xwiki.platform:xwiki-platform-administration-ui☕org.xwiki.platform:xwiki-platform-administration-uiReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.
Description
Impact
Any user with script rights can perform arbitrary remote code execution by adding instances of XWiki.ConfigurableClass to any page. This compromises the confidentiality, integrity and availability of the whole XWiki installation.
To reproduce on a instance, as a user with script rights, edit your user profile and add an object of type XWiki.ConfigurableClass ("Custom configurable sections").
Set "Display in section" and "Display in category" to other, "Scope" to Wiki and all spaces and "Heading" to:
#set($codeToExecute = 'Test') #set($codeToExecuteResult = '{{async}}{{groovy}}services.logging.getLogger("attacker").error("Attack from Heading succeeded!"){{/groovy}}{{/async}}')
Save the page and view it, then add ?sheet=XWiki.AdminSheet&viewer=content§ion=other to the URL.
If the logs contain "attacker - Attack from Heading succeeded!", then the instance is vulnerable.
Patches
This has been patched in XWiki 15.10.9 and 16.3.0.
Workarounds
We're not aware of any workaround except upgrading.
References
- https://jira.xwiki.org/browse/XWIKI-21207
- https://github.com/xwiki/xwiki-platform/commit/8493435ff9606905a2d913607d6c79862d0c168d
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 Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | org.xwiki.platform:xwiki-platform-administration-ui | ≥ 2.3&&< 15.10.9 | 15.10.9 |
| ☕Maven | org.xwiki.platform:xwiki-platform-administration-ui | ≥ 16.0.0-rc-1&&< 16.3.0 | 16.3.0 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.xwiki.platform:xwiki-platform-administration-ui. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update org.xwiki.platform:xwiki-platform-administration-ui to 15.10.9 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-r279-47wg-chpr is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether GHSA-r279-47wg-chpr is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to GHSA-r279-47wg-chpr. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is GHSA-r279-47wg-chpr in your dependencies?
O3 detects GHSA-r279-47wg-chpr across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.