What the vulnerability does
01Description
The Ultimate Multi Design Video Carousel plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 1.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with editor-level access, 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
Ultimate Multi Design Video Carousel versions 1.4 and earlier contain a cross-site scripting vulnerability. An attacker with high-level site privileges can inject malicious scripts that execute in other users' browsers, potentially affecting site-wide functionality. The vulnerability requires administrative or equivalent access to exploit.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that run in other users' browsers when they view affected pages.
Potential impact on your site
04Site Impact
A compromised admin account could inject scripts affecting all site visitors, potentially stealing data or redirecting users.
Conditions required to exploit
05Prerequisites
Attacker must have high-level site privileges (administrator or equivalent role).
Key dates
06Disclosure timeline
October 3, 2025
CVE published
April 8, 2026
Record updated
