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

> Unauthenticated attackers can upload malicious ASPX scripts via path traversal in the codeEditorSave.asmx endpoint to achieve remote code execution.

- **Severity:** Critical 9.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 13 Aug 2025
- **Updated:** 15 May 2026
- **Also known as:** GHSA-c8gg-qc8v-6jfx

## What is CVE-2012-10054?

CVE-2012-10054 is a critical vulnerability in Umbraco Umbraco Cms, published on 13 Aug 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official 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.

Weakness: CWE-434 (Unrestricted Upload of File with Dangerous Type), CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2012-10054?

It affects 1 product.


Products: Umbraco Umbraco Cms.

## How do I fix CVE-2012-10054?

No fix has been published for CVE-2012-10054 yet. Limit exposure of the affected software until one is available.

## Is CVE-2012-10054 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2012-10054 exists.

Public exploit code:

- Umbraco CMS Remote Command Execution (metasploit)

## Other vulnerabilities in Umbraco Umbraco Cms

- [CVE-2025-67288](https://insights.sbomify.com/CVE-2025-67288/): Umbraco CMS has an arbitrary file upload vulnerability (critical 10.0)
- [CVE-2014-10074](https://insights.sbomify.com/CVE-2014-10074/): File upload in n/a (critical 9.8)
- [CVE-2012-1301](https://insights.sbomify.com/CVE-2012-1301/): Server-side request forgery in n/a (critical 9.8)
- [CVE-2025-32017](https://insights.sbomify.com/CVE-2025-32017/): Umbraco has a Management API Vulnerability to Path Traversal With Authenticated Users (high 8.8)
- [CVE-2020-9471](https://insights.sbomify.com/CVE-2020-9471/): Umbraco CMS Authenticated File Upload (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2012-10054 and fix it if it is affected.

What it is: CVE-2012-10054 is a critical vulnerability in Umbraco Umbraco Cms, published on 13 Aug 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2012-10054 exists.

Affected product: Umbraco Umbraco Cms. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2012-10054/ (Markdown: https://insights.sbomify.com/CVE-2012-10054/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2012-10054
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2012-10054
- OSV: https://osv.dev/vulnerability/CVE-2012-10054

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From sbomify Insights: https://insights.sbomify.com/CVE-2012-10054/
Summaries are generated and may contain mistakes; the official description above is the record.