# CVE-2015-7699: Code injection in n/a

> Authenticated users can execute arbitrary code in ownCloud Server by exploiting a flaw in the files_external app's objectstore handling.

- **Severity:** Critical 9.0 (`AV:N/AC:L/Au:S/C:C/I:C/A:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 26 Oct 2015
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-rj7h-v734-5679

## What is CVE-2015-7699?

CVE-2015-7699 is a critical code injection vulnerability in Owncloud Owncloud Server, published on 26 Oct 2015. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The files_external app in ownCloud Server before 7.0.9, 8.0.x before 8.0.7, and 8.1.x before 8.1.2 allows remote authenticated users to instantiate arbitrary classes and possibly execute arbitrary code via a crafted mount point option, related to "objectstore."

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2015-7699?

It affects 1 product.


Products: Owncloud Owncloud Server.

## How do I fix CVE-2015-7699?

Upgrade to a fixed version.

## Is CVE-2015-7699 being exploited?

There is no known exploitation of CVE-2015-7699 in the wild and no public exploit code.

## Other vulnerabilities in Owncloud Owncloud Server

- [CVE-2023-49105](https://insights.sbomify.com/CVE-2023-49105/): ownCloud Improper Authentication (critical 9.8, exploited in the wild)
- [CVE-2015-6500](https://insights.sbomify.com/CVE-2015-6500/): Path traversal in n/a (high 7.5)
- [CVE-2014-2051](https://insights.sbomify.com/CVE-2014-2051/): Code injection in n/a (high 7.5)
- [CVE-2014-2054](https://insights.sbomify.com/CVE-2014-2054/): PHPExcel vulnerable to XXE attacks through libxml (high 7.5)
- [CVE-2014-2056](https://insights.sbomify.com/CVE-2014-2056/): XML external entity in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2015-7699 and fix it if it is affected.

What it is: CVE-2015-7699 is a critical code injection vulnerability in Owncloud Owncloud Server, published on 26 Oct 2015. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2015-7699 in the wild and no public exploit code.

Affected product: Owncloud Owncloud Server. 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-2015-7699/ (Markdown: https://insights.sbomify.com/CVE-2015-7699/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2015-7699
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2015-7699
- OSV: https://osv.dev/vulnerability/CVE-2015-7699

---
From sbomify Insights: https://insights.sbomify.com/CVE-2015-7699/
Summaries are generated and may contain mistakes; the official description above is the record.