# CVE-2023-53922: TinyWebGallery v2.5 Remote Code Execution via Unrestricted File Upload

> Unauthenticated attackers can upload malicious PHP files to execute arbitrary code on the server via the admin upload functionality.

- **Severity:** Critical 9.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 17 Dec 2025
- **Updated:** 15 Jul 2026
- **Also known as:** GHSA-43xj-26f5-3q3h

## What is CVE-2023-53922?

CVE-2023-53922 is a critical vulnerability in TinyWebGallery, published on 17 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

TinyWebGallery v2.5 contains a remote code execution vulnerability in the admin upload functionality that allows unauthenticated attackers to upload malicious PHP files. Attackers can upload .phar files with embedded system commands to execute arbitrary code on the server by accessing the uploaded file's URL.

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

## Which versions are affected by CVE-2023-53922?

It affects 1 product.


Products: Tinywebgallery Tinywebgallery.

## How do I fix CVE-2023-53922?

No fix has been published for CVE-2023-53922 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-53922 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-53922 exists.

## Other vulnerabilities in TinyWebGallery

- [CVE-2012-5347](https://insights.sbomify.com/CVE-2012-5347/): Command injection in n/a (high 7.5)
- [CVE-2006-4166](https://insights.sbomify.com/CVE-2006-4166/): Code injection in n/a (high 7.5)
- [CVE-2012-2931](https://insights.sbomify.com/CVE-2012-2931/): Code injection in n/a (high 7.2)
- [CVE-2012-2930](https://insights.sbomify.com/CVE-2012-2930/): Cross-site request forgery in n/a (medium 6.8)
- [CVE-2017-16635](https://insights.sbomify.com/CVE-2017-16635/): Cross-site scripting in n/a (medium 5.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-53922 and fix it if it is affected.

What it is: CVE-2023-53922 is a critical vulnerability in TinyWebGallery, published on 17 Dec 2025. 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-2023-53922 exists.

Affected product: TinyWebGallery. 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-2023-53922/ (Markdown: https://insights.sbomify.com/CVE-2023-53922/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-53922
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-53922
- OSV: https://osv.dev/vulnerability/CVE-2023-53922

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-53922/
Summaries are generated and may contain mistakes; the official description above is the record.