Unauthenticated Remote Code Execution in Umbraco CMS by Umbraco
CVE-2012-10054

9.3CRITICAL

Key Information:

Vendor

Umbraco

Status
Cms
Vendor
CVE Published:
13 August 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2012-10054?

Certain versions of Umbraco CMS, specifically those released before 4.7.1, possess a vulnerability that allows unauthenticated remote code execution through the codeEditorSave.asmx SOAP endpoint. This endpoint's SaveDLRScript operation can be exploited to upload arbitrary files without authentication. By taking advantage of a path traversal weakness in the fileName parameter, malicious actors can place harmful ASPX scripts directly into the publicly accessible /umbraco/ directory, enabling remote execution of these scripts.

Affected Version(s)

CMS * < 4.7.1

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2012-10054 - Proof of Concept

CVE-2012-10054 - Proof of Concept

CVE-2012-10054 - Proof of Concept

References

https://raw.githubusercontent.com/rapid7/metasploit-frame...
exploit
https://www.exploit-db.com/exploits/19671
exploit
https://web.archive.org/web/20120707033729/http://blog.gd...
technical-descriptionexploit

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Toby Clarke
.
CVE-2012-10054 : Unauthenticated Remote Code Execution in Umbraco CMS by Umbraco