# CVE-2015-2079: Code injection in Usermin

> Remote attackers can execute arbitrary code on Usermin servers due to unsafe Perl open usage in the configuration save script.

- **Severity:** Critical 9.9 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 28 Apr 2025
- **Updated:** 28 Apr 2025
- **Also known as:** GHSA-9wfx-p9gg-hp4f

## What is CVE-2015-2079?

CVE-2015-2079 is a critical code injection vulnerability in Usermin, published on 28 Apr 2025. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Usermin 0.980 through 1.x before 1.660 allows uconfig_save.cgi sig_file_free remote code execution because it uses the two argument (not three argument) form of Perl open.

Weakness: CWE-94 (Improper Control of Generation of Code), CWE-96 (Improper Neutralization of Directives in Statically Saved Code)

## Which versions are affected by CVE-2015-2079?

It affects 1 product.


Products: Webmin Usermin.

## How do I fix CVE-2015-2079?

No fix has been published for CVE-2015-2079 yet. Limit exposure of the affected software until one is available.

## Is CVE-2015-2079 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2015-2079 exists.

## Other vulnerabilities in Usermin

- [CVE-2022-35132](https://insights.sbomify.com/CVE-2022-35132/): Command injection in n/a (high 8.8)
- [CVE-2014-3883](https://insights.sbomify.com/CVE-2014-3883/): Usermin before 1.600 allows remote attackers to execute arbitrary operating-system commands via unspecified vectors related to a user action. (medium 6.8)
- [CVE-2024-36453](https://insights.sbomify.com/CVE-2024-36453/): Cross-site scripting in Usermin (medium 6.1)
- [CVE-2023-41162](https://insights.sbomify.com/CVE-2023-41162/): Cross-site scripting in n/a (medium 6.1)
- [CVE-2022-36880](https://insights.sbomify.com/CVE-2022-36880/): Cross-site scripting in n/a (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2015-2079 and fix it if it is affected.

What it is: CVE-2015-2079 is a critical code injection vulnerability in Usermin, published on 28 Apr 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2015-2079 exists.

Affected product: Usermin. 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-2015-2079/ (Markdown: https://insights.sbomify.com/CVE-2015-2079/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2015-2079
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2015-2079
- OSV: https://osv.dev/vulnerability/CVE-2015-2079

---
From sbomify Insights: https://insights.sbomify.com/CVE-2015-2079/
Summaries are generated and may contain mistakes; the official description above is the record.