What the vulnerability does
01Description
The FitVids for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 4.0.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
Explanation of Vulnerability in Simple Terms
02Summary
FitVids for WordPress versions 4.0.1 and earlier contain a cross-site scripting vulnerability in the plugin's output handling. An authenticated administrator with high privileges can inject malicious scripts that affect other users across the site. The vulnerability requires specific attack conditions and does not allow data theft or service disruption, but can compromise user sessions and trust.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that execute in other users' browsers when they view affected pages.
Potential impact on your site
04Site Impact
Administrators can inadvertently inject malicious code affecting all site visitors; requires immediate plugin update.
Conditions required to exploit
05Prerequisites
Attacker must be an authenticated administrator or high-privilege user; no user interaction required from victims.
Key dates
06Disclosure timeline
December 5, 2025
CVE published
April 8, 2026
Record updated
