What’s Vulnerable › Vulnerabilities

CVE-2025-27602: Umbraco Allows a Restricted Editor User to Delete Media Item or Access Unauthorized Content

• Severity: medium (CVSS 6.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-03-11 · updated 2026-06-17
• Weakness: CWE-285

Description

Umbraco is a free and open source .NET content management system. In versions of Umbraco's web backoffice program prior to versions 10.8.9 and 13.7.1, via manipulation of backoffice API URLs, it's possible for authenticated backoffice users to retrieve or delete content or media held within folders the editor does not have access to. The issue is patched in versions 10.8.9 and 13.7.1. No known workarounds are available.

Affected products

• Umbraco-CMS: before 10.8.9; from 11.0.0 before 13.7.1 — fixed in 10.8.9, 13.7.1

How to fix

Upgrade to a fixed version: Umbraco-CMS 10.8.9, 13.7.1. Check the vendor advisory for mitigations.

References

• https://github.com/umbraco/Umbraco-CMS/commit/5b54bed406682ceff57903bf7d3c57814eef31a7
• https://github.com/umbraco/Umbraco-CMS/commit/7888b9a4ce5ae7f9bda7ff3bb705b8fcd2f1675d
• https://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-wx5h-wqfq-v698

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