What the vulnerability does
01Description
The All-in-One Video Gallery plugin for WordPress is vulnerable to arbitrary file upload in all versions up to, and including, 4.5.7. This is due to insufficient file type validation detecting VTT files, allowing double extension files to bypass sanitization while being accepted as a valid VTT file. 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.
Explanation of Vulnerability in Simple Terms
02Summary
All-in-One Video Gallery versions 4.5.7 and earlier allow authenticated users to upload files without proper validation. An attacker with low-level site access can upload malicious files, potentially including executable code. This can lead to unauthorized access, data theft, or site compromise.
What an attacker can do
03Attacker Capabilities
Upload malicious files to the site, including executable code that runs on the server.
Potential impact on your site
04Site Impact
Compromised site integrity, data theft, or complete server takeover if malicious code is executed.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege user account on the site (e.g., subscriber or contributor role).
Key dates
06Disclosure timeline
January 16, 2026
CVE published
April 8, 2026
Record updated
