CVE-2019-13236
MEDIUMCVE-2019-13236 is a medium-severity (CVSS 6.1) Cross-site Scripting (XSS) vulnerability in org.opencms:opencms-core. 2 public exploit references exist, so weaponization risk is real. O3 Security confirms whether CVE-2019-13236 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
XSS issues in the management interface
Real-World Exposure
org.opencms:opencms-coreReal-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
In system/workplace/ in Alkacon OpenCms 10.5.4 and 10.5.5, there are multiple Reflected and Stored XSS issues in the management interface.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | org.opencms:opencms-core | all versions | 11.0.1 |
Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
Alkacon OpenCMS 10.5.x - Cross-Site Scripting (2)
by Aetsu · Sep 2, 2019
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.opencms:opencms-core. 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.opencms:opencms-core to 11.0.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2019-13236 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 CVE-2019-13236 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 CVE-2019-13236. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is CVE-2019-13236 in your dependencies?
O3 detects CVE-2019-13236 across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.