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MEDIUM severity

GHSA-rh9f-gr6q-mpc4

MEDIUMFix: moonshine-software/moonshine@f108f4e

GHSA-rh9f-gr6q-mpc4 is a medium-severity (CVSS 4.9) Cross-site Scripting (XSS) vulnerability in moonshine/moonshine. O3 Security confirms whether GHSA-rh9f-gr6q-mpc4 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

Also known asCVE-2025-51488
Published
Aug 19, 2025
Updated
Aug 20, 2025
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Aug 20, 2025 · OSV.dev, NVD, FIRST.org (EPSS)

Real-World Exposure

1 pkg affected
🐘moonshine/moonshine

Real-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 in the Create Admin function of MoonShine v3.12.3 allows attackers to execute arbitrary web scripts or HTML via injecting a crafted payload into the Name parameter.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagistmoonshine/moonshineall versions3.12.14

Detection & mitigation playbook

Open-source dependency
  1. Detect

    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.

  2. Fix

    Update moonshine/moonshine to 3.12.14 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-rh9f-gr6q-mpc4 is resolved across your whole dependency graph.

  3. 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.

  4. How O3 protects you

    O3 pinpoints whether GHSA-rh9f-gr6q-mpc4 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-rh9f-gr6q-mpc4. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

A stored cross-site scripting (XSS) vulnerability in the Create Admin function of MoonShine v3.12.3 allows attackers to execute arbitrary web scripts or HTML via injecting a crafted payload into the Name parameter.
O3 Security · Impact-Aware SCA

Is GHSA-rh9f-gr6q-mpc4 in your dependencies?

O3 detects GHSA-rh9f-gr6q-mpc4 across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

GHSA-rh9f-gr6q-mpc4: moonshine/moonshin… | O3 Security