# CVE-2020-10252: Server-side request forgery in n/a

> An authenticated attacker can exploit a Server-Side Request Forgery vulnerability in ownCloud to interact with local services or cause a Denial of Service.

- **Severity:** High 8.3 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/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:** 19 Feb 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-jjpp-cjc4-jw4h

## What is CVE-2020-10252?

CVE-2020-10252 is a high-severity server-side request forgery vulnerability in Owncloud Owncloud, published on 19 Feb 2021. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

An issue was discovered in ownCloud before 10.4. Because of an SSRF issue (via the apps/files_sharing/external remote parameter), an authenticated attacker can interact with local services blindly (aka Blind SSRF) or conduct a Denial Of Service attack.

Weakness: CWE-918 (Server-Side Request Forgery)

## Which versions are affected by CVE-2020-10252?

It affects 1 product.


Products: Owncloud Owncloud.

## How do I fix CVE-2020-10252?

No fix has been published for CVE-2020-10252 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-10252 being exploited?

There is no known exploitation of CVE-2020-10252 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-2020-10252 and fix it if it is affected.

What it is: CVE-2020-10252 is a high-severity server-side request forgery vulnerability in Owncloud Owncloud, published on 19 Feb 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-10252 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-2020-10252/ (Markdown: https://insights.sbomify.com/CVE-2020-10252/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-10252
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-10252
- OSV: https://osv.dev/vulnerability/CVE-2020-10252

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-10252/
Summaries are generated and may contain mistakes; the official description above is the record.