Firelight Lightbox vulnerabilities

The Firelight Lightbox WordPress plugin before 2.3.24 does not properly escape image attribute values before processing them in the browser. This could allow users with contributor-level access and above to inject arbitrary web scripts that execute when another user views or previews the affected content.

The Firelight Lightbox plugin for WordPress before 2.3.23 does not escape the URL of links opened in its Classic lightbox before inserting them into the page as HTML. This allows users with a role as low as Contributor to perform stored cross-site scripting attacks against users who click a crafted link.

The Firelight Lightbox plugin for WordPress up to version 2.3.20 is vulnerable to Stored DOM Cross-Site Scripting. The href attribute in PDF links is insufficiently sanitized, allowing authenticated attackers with contributor-level access or higher to inject scripts.