# CVE-2024-1921: osuuu LightPicture Setup.php unrestricted upload

> Attackers can upload malicious files via Setup.php in LightPicture, potentially leading to remote code execution.

- **Severity:** Medium 4.7 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 27 Feb 2024
- **Updated:** 1 Aug 2024
- **Also known as:** GHSA-xhqr-4qmf-wjm3

## What is CVE-2024-1921?

CVE-2024-1921 is a medium-severity vulnerability in osuuu LightPicture, published on 27 Feb 2024. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

A vulnerability, which was classified as critical, was found in osuuu LightPicture up to 1.2.2. Affected is an unknown function of the file /app/controller/Setup.php. The manipulation leads to unrestricted upload. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-254856.

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

## Which versions are affected by CVE-2024-1921?

It affects 1 product.


Products: Osuuu Lightpicture.

## How do I fix CVE-2024-1921?

No fix has been published for CVE-2024-1921 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-1921 being exploited?

There is no known exploitation of CVE-2024-1921 in the wild and no public exploit code.

## Other vulnerabilities in osuuu LightPicture

- [CVE-2024-1920](https://insights.sbomify.com/CVE-2024-1920/): osuuu LightPicture TokenVerify.php handle hard-coded key (medium 5.6)
- [CVE-2024-13141](https://insights.sbomify.com/CVE-2024-13141/): osuuu LightPicture SVG File Upload upload cross site scripting (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-1921 and fix it if it is affected.

What it is: CVE-2024-1921 is a medium-severity vulnerability in osuuu LightPicture, published on 27 Feb 2024. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2024-1921 in the wild and no public exploit code.

Affected product: osuuu LightPicture. 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-2024-1921/ (Markdown: https://insights.sbomify.com/CVE-2024-1921/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-1921
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-1921
- OSV: https://osv.dev/vulnerability/CVE-2024-1921

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-1921/
Summaries are generated and may contain mistakes; the official description above is the record.