XSS Vulnerability addressed.
Joomla 1.5.18 has recently been released and includes a security update to fix a core XSS vulnerability. All Joomla users are advised to upgrade. More details about the vulnerabilty can be found on Joomla's developers board HERE. If you wish to stay abreast of the latest security announcements and updates for Joomla, you are advised to keep a check on the Joomla Developer Vulnerability News Feed.
More information on the 1.5.18 release, including the downloads can be found on the product release page - HERE