# CVE-2021-25924: Cross-site request forgery in gocd

> Attackers can exploit missing CSRF protection in GoCD to modify backup settings or execute system commands via malicious links.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 1 Apr 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-997w-mjqx-37fq

## What is CVE-2021-25924?

CVE-2021-25924 is a high-severity vulnerability in gocd, published on 1 Apr 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

In GoCD, versions 19.6.0 to 21.1.0 are vulnerable to Cross-Site Request Forgery due to missing CSRF protection at the `/go/api/config/backup` endpoint. An attacker can trick a victim to click on a malicious link which could change backup configurations or execute system commands in the post_backup_script field.

Weakness: CWE-352 (Cross-Site Request Forgery)

## Which versions are affected by CVE-2021-25924?

It affects 1 product.


Products: Thoughtworks Gocd.

## How do I fix CVE-2021-25924?

No fix has been published for CVE-2021-25924 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-25924 being exploited?

There is no known exploitation of CVE-2021-25924 in the wild and no public exploit code.

## Other vulnerabilities in gocd

- [CVE-2021-43290](https://insights.sbomify.com/CVE-2021-43290/): Path traversal in n/a (critical 9.8)
- [CVE-2021-44659](https://insights.sbomify.com/CVE-2021-44659/): Server-side request forgery in n/a (critical 9.8)
- [CVE-2024-56320](https://insights.sbomify.com/CVE-2024-56320/): GoCD vulnerable to admin privilege escalation by a malicious internal/existing authenticated user (critical 9.4)
- [CVE-2022-39311](https://insights.sbomify.com/CVE-2022-39311/): Compromised agents may be able to execute remote code on GoCD Server (critical 9.1)
- [CVE-2022-29184](https://insights.sbomify.com/CVE-2022-29184/): Command Injection/Argument Injection in GoCD (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-25924 and fix it if it is affected.

What it is: CVE-2021-25924 is a high-severity vulnerability in gocd, published on 1 Apr 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2021-25924 in the wild and no public exploit code.

Affected product: gocd. 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-2021-25924/ (Markdown: https://insights.sbomify.com/CVE-2021-25924/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-25924
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-25924
- OSV: https://osv.dev/vulnerability/CVE-2021-25924

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-25924/
Summaries are generated and may contain mistakes; the official description above is the record.