# CVE-2026-2133: code-projects Online Music Site AdminUpdateCategory.php unrestricted upload

> Remote attackers can upload malicious files via the AdminUpdateCategory.php script, potentially leading to code execution on the server.

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 8 Feb 2026
- **Updated:** 23 Feb 2026
- **Also known as:** GHSA-hjhh-36m7-qvw6

## What is CVE-2026-2133?

CVE-2026-2133 is a medium-severity vulnerability in code-projects Online Music Site, published on 8 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A weakness has been identified in code-projects Online Music Site 1.0. Impacted is an unknown function of the file /Administrator/PHP/AdminUpdateCategory.php. This manipulation of the argument txtimage causes unrestricted upload. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks.

Weakness: CWE-434 (Unrestricted Upload of File with Dangerous Type), CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2026-2133?

It affects 1 product.


Products: Fabian Online Music Site.

## How do I fix CVE-2026-2133?

No fix has been published for CVE-2026-2133 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-2133 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-2133 exists.

## Other vulnerabilities in code-projects Online Music Site

- [CVE-2026-2211](https://insights.sbomify.com/CVE-2026-2211/): code-projects Online Music Site AdminDeleteCategory.php sql injection (medium 6.9)
- [CVE-2026-2212](https://insights.sbomify.com/CVE-2026-2212/): code-projects Online Music Site AdminEditCategory.php sql injection (medium 6.9)
- [CVE-2026-2132](https://insights.sbomify.com/CVE-2026-2132/): code-projects Online Music Site AdminUpdateCategory.php sql injection (medium 6.9)
- [CVE-2026-1534](https://insights.sbomify.com/CVE-2026-1534/): code-projects Online Music Site AdminEditUser.php sql injection (medium 6.9)
- [CVE-2026-1535](https://insights.sbomify.com/CVE-2026-1535/): code-projects Online Music Site AdminReply.php sql injection (medium 6.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-2133 and fix it if it is affected.

What it is: CVE-2026-2133 is a medium-severity vulnerability in code-projects Online Music Site, published on 8 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-2133 exists.

Affected product: code-projects Online Music Site. 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-2026-2133/ (Markdown: https://insights.sbomify.com/CVE-2026-2133/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-2133
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-2133
- OSV: https://osv.dev/vulnerability/CVE-2026-2133

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-2133/
Summaries are generated and may contain mistakes; the official description above is the record.