The WP Lightbox 2 WordPress plugin before 3.0.6.8 does not correctly sanitize the value of the title attribute of links before using them, which may allow malicious users to conduct XSS attacks.

The WP Lightbox 2 plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘title’ parameter in all versions up to, and including, 3.0.6.6 due to insufficient input sanitization and output escaping. 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.

Auth. (admin+) Stored Cross-Site Scripting (XSS) vulnerability in Syed Balkhi WP Lightbox 2 plugin <= 3.0.6.5 versions.