# CVE-2015-4715: Path traversal in n/a

> Remote Dropbox administrators can read arbitrary files on ownCloud servers via path traversal in the fetch function when external storage is mounted.

- **Severity:** Medium 4.9 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 17 Feb 2020
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-82h9-wxqp-j6pq

## What is CVE-2015-4715?

CVE-2015-4715 is a medium-severity path traversal vulnerability in Owncloud Owncloud, published on 17 Feb 2020. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

The fetch function in OAuth/Curl.php in Dropbox-PHP, as used in ownCloud Server before 6.0.8, 7.x before 7.0.6, and 8.x before 8.0.4 when an external Dropbox storage has been mounted, allows remote administrators of Dropbox.com to read arbitrary files via an @ (at sign) character in unspecified POST values.

Weakness: CWE-552 (Files or Directories Accessible to External Parties)

## Which versions are affected by CVE-2015-4715?

It affects 2 products.


Products: Owncloud Owncloud, Owncloud Owncloud Server.

## How do I fix CVE-2015-4715?

Upgrade to a fixed version.

## Is CVE-2015-4715 being exploited?

There is no known exploitation of CVE-2015-4715 in the wild and no public exploit code.

## Other vulnerabilities in Owncloud Owncloud

- [CVE-2021-35946](https://insights.sbomify.com/CVE-2021-35946/): Privilege escalation in n/a (critical 9.8)
- [CVE-2014-2052](https://insights.sbomify.com/CVE-2014-2052/): XML external entity in n/a (critical 9.8)
- [CVE-2014-2048](https://insights.sbomify.com/CVE-2014-2048/): Auth bypass in n/a (critical 9.8)
- [CVE-2020-28645](https://insights.sbomify.com/CVE-2020-28645/): Path traversal in n/a (critical 9.1)
- [CVE-2015-4718](https://insights.sbomify.com/CVE-2015-4718/): Command injection in n/a (critical 9.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2015-4715 and fix it if it is affected.

What it is: CVE-2015-4715 is a medium-severity path traversal vulnerability in Owncloud Owncloud, published on 17 Feb 2020. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2015-4715 in the wild and no public exploit code.

Affected product: Owncloud Owncloud. 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-2015-4715/ (Markdown: https://insights.sbomify.com/CVE-2015-4715/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2015-4715
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2015-4715
- OSV: https://osv.dev/vulnerability/CVE-2015-4715

---
From sbomify Insights: https://insights.sbomify.com/CVE-2015-4715/
Summaries are generated and may contain mistakes; the official description above is the record.