What’s Vulnerable › Vulnerabilities

CVE-2012-10054: Umbraco CMS < 4.7.1 codeEditorSave.asmx RCE

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-08-13 · updated 2026-06-16
• Weakness: CWE-22

Description

Umbraco CMS versions prior to 4.7.1 are vulnerable to unauthenticated remote code execution via the codeEditorSave.asmx SOAP endpoint, which exposes a SaveDLRScript operation that permits arbitrary file uploads without authentication. By exploiting a path traversal flaw in the fileName parameter, attackers can write malicious ASPX scripts directly into the web-accessible /umbraco/ directory and execute them remotely.

Affected products

• Umbraco-CMS: before 4.7.1 — fixed in 4.7.1

How to fix

Upgrade to a fixed version: Umbraco-CMS 4.7.1. Check the vendor advisory for mitigations.

References

• https://github.com/umbraco/Umbraco-CMS
• https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/http/umbraco_upload_aspx.rb
• https://web.archive.org/web/20111017174609/http://umbraco.codeplex.com/releases/view/73692
• https://web.archive.org/web/20120707033729/http://blog.gdssecurity.com/labs/2012/7/3/find-bugs-faster-with-a-webmatrix-local-reference-instance.html
• https://www.exploit-db.com/exploits/19671
• https://www.vulncheck.com/advisories/umbraco-cms-rce
• https://web.archive.org/web/20120707033729/http://blog.gdssecurity.com/labs/2012/7/3/find-bugs-faster-with-a-webmatrix-local-reference-instance.html

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