The PHP Security Consortium has posted thier latest SecurityFocus summary today - Issue #325.
PHP Applications covered in this issue include: Horde, PHPNuke, Cyphor Show.PHP, PHPWCMS, Mambo, PHP Easy Download, Interspire ArticleLive NX, PHP-Fusion, and PHPMyFAQ.
Of course, there are tons more that aren't listed here, so be sure to head over and check it out to be sure you and your applications are all safe...