PHP » PHP : Security Vulnerabilities Published In 2007 (XSS)

ext/filter in PHP 5.2.0, when FILTER_SANITIZE_STRING is used with the FILTER_FLAG_STRIP_LOW flag, does not properly strip HTML tags, which allows remote attackers to conduct cross-site scripting (XSS) attacks via HTML with a '<' character followed by certain whitespace characters, which passes one filter but is collapsed into a valid tag, as demonstrated using %0b.

A regression error in the phpinfo function in PHP 4.4.3 to 4.4.6, and PHP 6.0 in CVS, allows remote attackers to conduct cross-site scripting (XSS) attacks via GET, POST, or COOKIE array values, which are not escaped in the phpinfo output, as originally fixed for CVE-2005-3388.