CVE-2025-39538 WordPress WP-Advanced-Search plugin <= 3.3.9.4 - Arbitrary File Upload Vulnerability

Q: What is CVE-2025-39538?

CVE-2025-39538 is a medium-severity vulnerability in Mathieu Chartier WP-Advanced-Search, published on 16 Apr 2025. An attacker needs administrator access to exploit it, with no action from the victim.

Q: Is CVE-2025-39538 being exploited?

There is no known exploitation of CVE-2025-39538 in the wild and no public exploit code.

Q: How do I fix CVE-2025-39538?

No fix has been published for CVE-2025-39538 yet. Limit exposure of the affected software until one is available.

Medium 6.6 Published 16 Apr 2025 Updated 28 Apr 2026

Attackers can upload malicious web shells to the server via the WP-Advanced-Search plugin, leading to remote code execution.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-39538?

CVE-2025-39538 is a medium-severity vulnerability in Mathieu Chartier WP-Advanced-Search, published on 16 Apr 2025. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

Unrestricted Upload of File with Dangerous Type vulnerability in Mathieu Chartier WP-Advanced-Search wp-advanced-search allows Upload a Web Shell to a Web Server.This issue affects WP-Advanced-Search: from n/a through <= 3.3.9.4.

Weakness: CWE-434

Which versions are affected by CVE-2025-39538?

How do I fix CVE-2025-39538?

No fix has been published for CVE-2025-39538 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-39538 being exploited?

There is no known exploitation of CVE-2025-39538 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-62fp-h6c8-g6f9.