A online security and application vulnerability check agency SECUNIA reported a vulnerability in PHP Link Directory. The discovered vulnerability can be used by hackers to conduct script insertion attacks.
The script does not clean URL field properly before submitting to the database. This can be used to store arbitrary HTML or script code in database to execute and harm website.
According to Secunia vulnerability has been discovered by Jussi Vuokko and Henri Lindberg
Check here ADODB and PHP Mailer vulnerability related to PHP Link Directory.