GHSA-3989-4c6x-725f
CRITICALXWiki Platform vulnerable to privilege escalation from view right on XWiki.AttachmentSelector
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-attachment-ui☕org.xwiki.platform:xwiki-platform-attachment-ui☕org.xwiki.platform:xwiki-platform-attachment-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 view rights on XWiki.AttachmentSelector can execute arbitrary Groovy, Python or Velocity code in XWiki leading to full access to the XWiki installation. The root cause is improper escaping in the "Cancel and return to page" button. This page is installed by default.
See https://jira.xwiki.org/browse/XWIKI-20275 for the reproduction steps.
Patches
The vulnerability has been patched in XWiki 15.0-rc-1, 14.10.1, 14.4.8, and 13.10.11.
Workarounds
The issue can be fixed by applying this patch on XWiki.AttachmentSelector.
References
- https://github.com/xwiki/xwiki-platform/commit/aca1d677c58563bbe6e35c9e1c29fd8b12ebb996
- https://jira.xwiki.org/browse/XWIKI-20275
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-attachment-ui | ≥ 2.0-rc-2&&< 13.10.11 | 13.10.11 |
| ☕Maven | org.xwiki.platform:xwiki-platform-attachment-ui | ≥ 14.0-rc-1&&< 14.4.8 | 14.4.8 |
| ☕Maven | org.xwiki.platform:xwiki-platform-attachment-ui | ≥ 14.5&&< 14.10.1 | 14.10.1 |
Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
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-attachment-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-attachment-ui to 13.10.11 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-3989-4c6x-725f 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-3989-4c6x-725f 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-3989-4c6x-725f. 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-3989-4c6x-725f in your dependencies?
O3 detects GHSA-3989-4c6x-725f across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.