# CVE-2021-37144: Path traversal in n/a

> Attackers can delete arbitrary files on the server due to insufficient sanitization of user input in the unlink function.

- **Severity:** Critical 9.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 29 Jul 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-gr6q-m3p4-m22c

## What is CVE-2021-37144?

CVE-2021-37144 is a critical path traversal vulnerability in n/a, published on 29 Jul 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

CSZ CMS 1.2.9 is vulnerable to Arbitrary File Deletion. This occurs in PHP when the unlink() function is called and user input might affect portions of or the whole affected parameter, which represents the path of the file to remove, without sufficient sanitization.

Weakness: CWE-706 (Use of Incorrectly-Resolved Name or Reference)

## Which versions are affected by CVE-2021-37144?

It affects 1 product.


Products: Cszcms Csz Cms.

## How do I fix CVE-2021-37144?

No fix has been published for CVE-2021-37144 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-37144 being exploited?

There is no known exploitation of CVE-2021-37144 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2024-25414](https://insights.sbomify.com/CVE-2024-25414/): File upload in n/a (critical 9.8)
- [CVE-2022-27161](https://insights.sbomify.com/CVE-2022-27161/): SQL injection in n/a (critical 9.8)
- [CVE-2022-27162](https://insights.sbomify.com/CVE-2022-27162/): SQL injection in n/a (critical 9.8)
- [CVE-2022-27163](https://insights.sbomify.com/CVE-2022-27163/): SQL injection in n/a (critical 9.8)
- [CVE-2022-27164](https://insights.sbomify.com/CVE-2022-27164/): SQL injection in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-37144 and fix it if it is affected.

What it is: CVE-2021-37144 is a critical path traversal vulnerability in n/a, published on 29 Jul 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-37144 in the wild and no public exploit code.

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-2021-37144/ (Markdown: https://insights.sbomify.com/CVE-2021-37144/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-37144
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-37144
- OSV: https://osv.dev/vulnerability/CVE-2021-37144

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-37144/
Summaries are generated and may contain mistakes; the official description above is the record.