# CVE-2022-4060: User Post Gallery <= 2.19 - Unauthenticated RCE

> Unauthenticated attackers can execute arbitrary code on WordPress sites using the User Post Gallery plugin due to unrestricted callback function execution.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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:** 16 Jan 2023
- **Updated:** 4 Apr 2025
- **Also known as:** GHSA-g823-9xxv-px4q

## What is CVE-2022-4060?

CVE-2022-4060 is a critical code injection vulnerability in Unknown User Post Gallery, published on 16 Jan 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The User Post Gallery WordPress plugin through 2.19 does not limit what callback functions can be called by users, making it possible to any visitors to run code on sites running it.

## Which versions are affected by CVE-2022-4060?

It affects 1 product.


Products: Odude User Post Gallery.

## How do I fix CVE-2022-4060?

No fix has been published for CVE-2022-4060 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-4060 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-4060 exists.

Public exploit code:

- Automatic Mass Tool for checking vulnerability in CVE-2022-4060 - WordPress Plugin : User Post Gallery <= 2.19 - Unauthenticated RCE (github_poc): https://github.com/im-hanzou/UPGer
- WordPress User Post Gallery <=2.19 - Remote Code Execution (nuclei): http/cves/2022/CVE-2022-4060.yaml

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-4060 and fix it if it is affected.

What it is: CVE-2022-4060 is a critical code injection vulnerability in Unknown User Post Gallery, published on 16 Jan 2023. 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-2022-4060 exists.

Affected product: Unknown User Post Gallery. 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-2022-4060/ (Markdown: https://insights.sbomify.com/CVE-2022-4060/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-4060
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-4060
- OSV: https://osv.dev/vulnerability/CVE-2022-4060

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-4060/
Summaries are generated and may contain mistakes; the official description above is the record.