CVE-2025-51488
MEDIUMCVE-2025-51488 is a medium-severity (CVSS 4.9) Cross-site Scripting (XSS) vulnerability in moonshine/moonshine. O3 Security confirms whether CVE-2025-51488 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
moonshine Stored Cross-Site Scripting Vulnerability in Create Admin
Real-World Exposure
moonshine/moonshineReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.
Description
A Stored Cross-Site Scripting (XSS) vulnerability exists in MoonShine version < 3.12.4, allowing remote attackers to store and execute arbitrary JavaScript by including a malicious HTML payload in the Name parameter when creating a new Admin.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | moonshine/moonshine | all versions | 3.12.14 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for moonshine/moonshine. 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 moonshine/moonshine to 3.12.14 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2025-51488 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-2025-51488 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-2025-51488. 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-2025-51488 in your dependencies?
O3 detects CVE-2025-51488 across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.