# CVE-2020-22643: Feehi CMS arbitrary file upload vulnerability

> An authenticated administrator can upload malicious files to achieve remote code execution in Feehi CMS.

- **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:** 21 Jan 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-65x8-9vgm-5fg5

## What is CVE-2020-22643?

CVE-2020-22643 is a high-severity vulnerability in n/a, published on 21 Jan 2021. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

Feehi CMS 2.1.0 is affected by an arbitrary file upload vulnerability, potentially resulting in remote code execution. After an administrator logs in, open the administrator image upload page to potentially upload malicious files.

Weakness: CWE-434 (Unrestricted Upload of File with Dangerous Type)

## Which versions are affected by CVE-2020-22643?

2 open source packages ship an affected version, including feehi/cms. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `feehi/cms` | Packagist | All versions to 2.1.0-beta | None |
| `feehi/cms` | Packagist | All versions to 2.1.0-beta | None |

Products: Feehi Feehi Cms.

## How do I fix CVE-2020-22643?

No fix has been published for CVE-2020-22643 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-22643 being exploited?

There is no known exploitation of CVE-2020-22643 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2021-30108](https://insights.sbomify.com/CVE-2021-30108/): Server-Side Request Forgery in Feehi CMS (critical 9.1)
- [CVE-2022-34971](https://insights.sbomify.com/CVE-2022-34971/): Feehi CMS arbitrary code execution via crafted PHP file (high 8.8)
- [CVE-2022-38796](https://insights.sbomify.com/CVE-2022-38796/): Feehi CMS host header injection vulnerability (medium 6.1)
- [CVE-2020-21146](https://insights.sbomify.com/CVE-2020-21146/): Feehi CMS vulnerable to Cross-site Scripting in Username Field (medium 6.1)
- [CVE-2026-31313](https://insights.sbomify.com/CVE-2026-31313/): Feehi CMS has an authenticated stored cross-site scripting (XSS) vulnerability via the creation/editing module (medium 5.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-22643 and fix it if it is affected.

What it is: CVE-2020-22643 is a high-severity vulnerability in n/a, published on 21 Jan 2021. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-22643 in the wild and no public exploit code.

Affected packages and fixed versions:
- feehi/cms (Packagist): affected all versions up to 2.1.0-beta; no fix listed
- feehi/cms (Packagist): affected all versions up to 2.1.0-beta; no fix listed

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-2020-22643/ (Markdown: https://insights.sbomify.com/CVE-2020-22643/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-22643
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-22643
- OSV: https://osv.dev/vulnerability/CVE-2020-22643

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-22643/
Summaries are generated and may contain mistakes; the official description above is the record.