Medium · published May 20, 2026
The LJ comments import: reloaded plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via PHP_SELF Parameter in all versions up to, and including, 0.97.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. The vulnerability arises specifically because PHP_SELF includes attacker-controllable PATH_INFO appended to the script name, and there are two distinct unsanitized echo points for this value in the same function.