WordPress XSS via ThickBox JavaScript v3.1 in various plugins
CVE-2025-2537 Published on July 3, 2025
Multiple Plugins <= (Various Versions) - Authenticated (Contributor+) Stored DOM-Based Cross-Site Scripting via ThickBox JavaScript Library
Multiple plugins for WordPress are vulnerable to Stored Cross-Site Scripting via the plugin's bundled ThickBox JavaScript library (version 3.1) 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.
Timeline
Vendor Notified
Disclosed 106 days later.
Weakness Type
What is a XSS Vulnerability?
The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
CVE-2025-2537 has been classified to as a XSS vulnerability or weakness.
Products Associated with CVE-2025-2537
stack.watch emails you whenever new vulnerabilities are published in WordPress or Wpdevart Youtube Embed Playlist Popup. Just hit a watch button to start following.
Affected Versions
YouTube Embed, Playlist and Popup by WpDevArt:- Version *, <= 2.6.7 is affected.
- Version *, <= 3.5 is affected.
- Version *, <= 3.59.11 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.