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 WHMCS Bridge plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the connect() function in all versions up to, and including, 6.9. This makes it possible for authenticated attackers, with Custom-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible.
Explanation of Vulnerability in Simple Terms
WHMCS Bridge versions 6.9 and earlier 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 their own code on the site. This affects confidentiality, integrity, and availability of the installation.
What an attacker can do
Upload malicious files and run their own code on the site.
Potential impact on your site
Compromised site with potential data theft, defacement, or complete takeover.
Conditions required to exploit
Attacker must have a low-privilege user account on the site.
Key dates
External resources
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