Cyber Resilience

CVE-2025-32017

High

Published: 08 April 2025

Published
08 April 2025
Modified
22 September 2025
KEV Added
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Patch
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CVSS Score v3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0043 63.0th percentile
Risk Priority 18 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-32017 is a high-severity Relative Path Traversal (CWE-23) vulnerability in Umbraco Umbraco Cms. Its CVSS base score is 8.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 37.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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…

more

Umbraco 14+ and is patched in 14.3.4 and 15.3.1.

CWE(s)
CWE-23

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
T1505.003 Web Shell Persistence
Adversaries may backdoor web servers with web shells to establish persistent access to systems.
attack.mitre.org →
Why these techniques?

Path traversal in Umbraco management API enables authenticated users to upload files to arbitrary locations, facilitating exploitation of public-facing web applications (T1190) and deployment of web shells for remote code execution (T1100).

Affected Assets

umbraco
umbraco cms
14.0.0 — 14.3.4 · 15.0.0 — 15.3.1

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References