CVE-2025-51489

MoonShine Arbitrary File Upload Vulnerability

5.4 MediumFix available

A Stored Cross-Site Scripting (XSS) vulnerability exists in MoonShine version < 3.12.5, allowing remote attackers to upload a malicious SVG file when creating/updating an Article and correctly execute arbitrary JavaScript when the file link is opened.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: Required

What an attacker can affect

Confidentiality: Low
Integrity: Low
Availability: None

Exploit likelihood

0.34%Up 0.3 points since Aug 20, 2025

What each source reports

NVD Score used 5.4

Record: CVE-2025-51489
CVSS 3.1: 5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CVSS 3.1: 4.5 MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N
Weakness: CWE-79, CWE-434
Updated: 2026-11-02

CVE List 4.5

Record: CVE-2025-51489
CVSS 3.1: 4.5 MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N
Weakness: CWE-434
Updated: 2026-11-02

EUVDEUVD-2025-25180 4.5

Record: EUVD-2025-25180
CVSS 3.1: 4.5 MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-8xfq-7f6m-mpmf 4.5

MoonShine Arbitrary File Upload Vulnerability

An arbitrary file upload vulnerability in MoonShine v3.12.4 allows attackers to execute arbitrary code via uploading a crafted SVG file.

Record: GHSA-8xfq-7f6m-mpmf
CVSS 3.1: 4.5 MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N
Weakness: CWE-79, CWE-434
Updated: 2026-11-02

OSV 4.5

Record: CVE-2025-51489
CVSS 3.1: 4.5 MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N
Updated: 2026-11-02

OSVGHSA-8xfq-7f6m-mpmf 4.5

MoonShine Arbitrary File Upload Vulnerability

An arbitrary file upload vulnerability in MoonShine v3.12.4 allows attackers to execute arbitrary code via uploading a crafted SVG file.

Record: GHSA-8xfq-7f6m-mpmf
CVSS 3.1: 4.5 MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N
Weakness: CWE-434, CWE-79
Updated: 2026-11-02

Affected products

moonshine

Affected packages

Affected packages
Package	Affected	Fixed
`moonshine/moonshine` Packagist	before 3.12.5	3.12.5
`moonshine/moonshine` Packagist	before 3.12.5, plus listed versions 1.0.01.1.01.10.01.11.01.12.0 Show 45 moreShow less 1.13.01.14.01.14.11.15.01.15.11.15.21.15.31.16.01.17.01.17.11.18.01.19.01.19.11.2.01.2.11.2.21.20.01.20.11.21.01.21.11.21.21.22.01.22.11.23.01.23.11.23.21.24.01.25.01.25.11.25.21.25.31.25.41.25.51.25.61.25.71.25.81.26.01.26.11.27.01.27.11.27.21.27.31.28.01.3.01.4.0	3.12.5

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-51489 is a medium vulnerability (CVSS 5.4) in Moonshine, published August 19, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.34%, the 28th percentile. Fixed in moonshine/moonshine 3.12.5.

References

This page doesn't list everything

Left out here: 272 versions. The JSON record has them.