GHSA-xxp2-9c9g-7wmj is a critical-severity (CVSS 9.9) CWE-862 vulnerability in org.xwiki.platform:xwiki-platform-localization-source-wiki. 1 public exploit reference exists, so weaponization risk is real. A fix is available for org.xwiki.platform:xwiki-platform-localization-source-wiki — see the affected versions and patch details below.
XWiki Platform: Remote code execution from edit in multilingual wikis via translations
Exploitation Status
Proof-of-concept exploit code exists
- CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.
- A successful exploit gives an attacker total control of the affected component, not partial access.
Exploitation and automatability from CISA’s SSVC triage for GHSA-xxp2-9c9g-7wmj.
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.
How urgent is this, really
GHSA-xxp2-9c9g-7wmj plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.
Where this sits among everything scored
Of 377,636 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.
Real-World Exposure
org.xwiki.platform:xwiki-platform-localization-source-wiki☕org.xwiki.platform:xwiki-platform-localization-source-wiki☕org.xwiki.platform:xwiki-platform-localization-source-wikiReal-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
In multilingual wikis, translations can be edited by any user who has edit right, circumventing the rights that are normally required for authoring translations (script right for user-scope translations, wiki admin for translations on the wiki). This can be exploited for remote code execution if the translation value is not properly escaped where it is used. To reproduce, in a multilingual wiki, as a user without script or admin right, edit a translation of AppWithinMinutes.Translations and in the line platform.appwithinminutes.description= add {{async}}{{groovy}}println("Hello from Translation"){{/groovy}}{{/async}} at the end. Then open the app with in minutes home page (AppWithinMinutes.WebHome) in the same locale. If translations are still working and "Hello from Translation" is displayed at the end of the introduction, the installation is vulnerable.
Patches
This has been patched in XWiki 14.10.20, 15.5.4 and 15.10RC1.
Workarounds
We're not aware of any workaround except restricting edit right on documents that contain translations.
References
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | org.xwiki.platform:xwiki-platform-localization-source-wiki | ≥ 4.3-milestone-2&&< 14.10.20 | 14.10.20org.xwiki.platform:xwiki-platform-localization-source-wiki:14.10.20 |
| ☕Maven | org.xwiki.platform:xwiki-platform-localization-source-wiki | ≥ 15.0-rc-1&&< 15.5.4 | 15.5.4org.xwiki.platform:xwiki-platform-localization-source-wiki:15.5.4 |
| ☕Maven | org.xwiki.platform:xwiki-platform-localization-source-wiki | ≥ 15.6-rc-1&&< 15.10-rc-1 | 15.10-rc-1org.xwiki.platform:xwiki-platform-localization-source-wiki:15.10-rc-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-localization-source-wiki, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.xwiki.platform:xwiki-platform-localization-source-wiki to 14.10.20 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-xxp2-9c9g-7wmj 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 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-xxp2-9c9g-7wmj can be triaged on real exposure rather than presence alone.
Tailored to GHSA-xxp2-9c9g-7wmj. 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-xxp2-9c9g-7wmj in your dependencies?
O3 Security finds GHSA-xxp2-9c9g-7wmj across Maven dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.