What the vulnerability does
01Description
The My Custom CSS PHP & ADS plugin for WordPress is vulnerable to Full Path Disclosure in all versions up to, and including, 3.3. This is due the plugin not preventing direct access to the /my-custom-css/vendor/mobiledetect/mobiledetectlib/export/exportToJSON.php file and and the file displaying/generating the full path. This makes it possible for unauthenticated attackers to retrieve the full path of the web application, which can be used to aid other attacks. The information displayed is not useful on its own, and requires another vulnerability to be present for damage to an affected website.
Explanation of Vulnerability in Simple Terms
02Summary
My Custom CSS PHP & ADS versions 3.3 and earlier expose sensitive information that can be read over the network without authentication. An attacker can retrieve this data directly without needing to log in or interact with a site administrator. Sites running affected versions should update immediately to prevent unauthorized information disclosure.
What an attacker can do
03Attacker Capabilities
Read sensitive information from the site without logging in.
Potential impact on your site
04Site Impact
Sensitive data may be exposed to anyone on the internet who knows how to request it.
Conditions required to exploit
05Prerequisites
Network access to the site; no authentication or user interaction required.
Key dates
06Disclosure timeline
August 9, 2024
CVE published
April 8, 2026
Record updated
