CVE-2025-39538 MEDIUM

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

Vendor Mathieu Chartier
Product WP-Advanced-Search
Weakness CWE-434 · Unrestricted file upload
Published April 16, 2025
Last update April 28, 2026
View on NVD All CVEs

CVSS base score

6.6/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L

What the vulnerability does

01Description

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.

Explanation of Vulnerability in Simple Terms

02Summary

WP-Advanced-Search versions 3.3.9.4 and earlier allow authenticated administrators to upload files without proper validation. An attacker with admin privileges can upload malicious files that may affect the confidentiality, integrity, or availability of the site and potentially other systems. Update to a version newer than 3.3.9.4.

What an attacker can do

03Attacker Capabilities

Upload files without validation to compromise site integrity and confidentiality.

Potential impact on your site

04Site Impact

An admin account compromise could allow file uploads that damage your site or expose user data.

Conditions required to exploit

05Prerequisites

Attacker must have administrator-level access to the WordPress site.

Key dates

06Disclosure timeline

April 16, 2025 CVE published
April 28, 2026 Record updated