What the vulnerability does
01Description
Multiple plugins for WordPress are vulnerable to Stored Cross-Site Scripting via the plugin's bundled Featherlight.js JavaScript library (versions 1.7.13 to 1.7.14) in various versions due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Explanation of Vulnerability in Simple Terms
02Summary
WP Featherlight versions 1.3.4 and earlier contain a cross-site scripting vulnerability that allows authenticated users to inject malicious scripts. The vulnerability has a changed scope, meaning the impact can extend beyond the lightbox component itself. Site administrators should update to a version newer than 1.3.4 to mitigate this risk.
What an attacker can do
03Attacker Capabilities
Inject and execute malicious JavaScript code that affects other users and site functionality.
Potential impact on your site
04Site Impact
Authenticated users can inject scripts affecting other visitors and site operations; update the plugin immediately.
Conditions required to exploit
05Prerequisites
Attacker must be authenticated as a WordPress user with low privileges; no user interaction required.
Key dates
06Disclosure timeline
March 5, 2025
CVE published
April 8, 2026
Record updated
