# CVE-2020-15867: Code injection in n/a

> Authenticated users can execute arbitrary code via git hooks, potentially escalating privileges if non-admins have hook access.

- **Severity:** High 7.2 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 16 Oct 2020
- **Updated:** 4 Aug 2024

## What is CVE-2020-15867?

CVE-2020-15867 is a high-severity code injection vulnerability in n/a, published on 16 Oct 2020. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

The git hook feature in Gogs 0.5.5 through 0.12.2 allows for authenticated remote code execution. There can be a privilege escalation if access to this hook feature is granted to a user who does not have administrative privileges. NOTE: because this is mentioned in the documentation but not in the UI, it could be considered a "Product UI does not Warn User of Unsafe Actions" issue.

## Which versions are affected by CVE-2020-15867?

It affects 1 product.


Products: Gogs Gogs.

## How do I fix CVE-2020-15867?

No fix has been published for CVE-2020-15867 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-15867 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-15867 exists.

Public exploit code:

- Gogs Git Hooks Remote Code Execution (metasploit)
- Gogs 0.5.5 - 0.12.2 - Remote Code Execution (nuclei): http/cves/2020/CVE-2020-15867.yaml

## Other vulnerabilities in n/a

- [CVE-2025-8110](https://insights.sbomify.com/CVE-2025-8110/): Gogs Path Traversal (high 8.7, exploited in the wild)
- [CVE-2024-56731](https://insights.sbomify.com/CVE-2024-56731/): Gogs deletion of internal files allows remote command execution (critical 10.0)
- [CVE-2022-1884](https://insights.sbomify.com/CVE-2022-1884/): Remote Command Execution in gogs/gogs (critical 10.0)
- [CVE-2022-1986](https://insights.sbomify.com/CVE-2022-1986/): OS Command Injection in gogs/gogs (critical 10.0)
- [CVE-2022-1992](https://insights.sbomify.com/CVE-2022-1992/): Path Traversal in gogs/gogs (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-15867 and fix it if it is affected.

What it is: CVE-2020-15867 is a high-severity code injection vulnerability in n/a, published on 16 Oct 2020. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-15867 exists.

Affected product: n/a. 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-2020-15867/ (Markdown: https://insights.sbomify.com/CVE-2020-15867/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-15867
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-15867
- OSV: https://osv.dev/vulnerability/CVE-2020-15867

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-15867/
Summaries are generated and may contain mistakes; the official description above is the record.