What’s Vulnerable › Vulnerabilities

CVE-2025-32017: Umbraco has a Management API Vulnerability to Path Traversal With Authenticated Users

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-04-08 · updated 2026-06-17
• Weakness: CWE-23

Description

Umbraco is a free and open source .NET content management system. Authenticated users to the Umbraco backoffice are able to craft management API request that exploit a path traversal vulnerability to upload files into a incorrect location. The issue affects Umbraco 14+ and is patched in 14.3.4 and 15.3.1.

Affected products

• Umbraco-CMS: from 14.0.0 before 14.3.4; from 15.0.0 before 15.3.1 — fixed in 14.3.4, 15.3.1

How to fix

Upgrade to a fixed version: Umbraco-CMS 14.3.4, 15.3.1. Check the vendor advisory for mitigations.

References

• https://github.com/umbraco/Umbraco-CMS/commit/06a2a500b358ce15b1e228391eb60bd517c6e833
• https://github.com/umbraco/Umbraco-CMS/commit/d3c1443b14b1076faf13d1bcecc42860fdf5fad8
• https://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-q62r-8ppj-xvf4

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