CVSS base score
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
What the vulnerability does
The ContentStudio plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the cstu_update_post() function in all versions up to, and including, 1.3.7. This makes it possible for authenticated attackers, with Author-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible. CVE-2025-67910 is likely a duplicate of this.
Explanation of Vulnerability in Simple Terms
ContentStudio versions up to 1.3.7 allow authenticated users to upload files without proper validation. An attacker with low-level access can upload malicious files to the server, potentially gaining the ability to run code, modify site content, or disrupt service. Update to version 1.4.1 or later.
What an attacker can do
Upload malicious files to the server and execute code or modify site content.
Potential impact on your site
Compromised sites may have malware installed, content altered, or service disrupted by authenticated attackers.
Conditions required to exploit
Attacker must have a low-privilege user account on the ContentStudio instance.
Key dates
External resources
