SQL injection vulnerability in privmsg.php in phpBB 2.0.3 and earlier allows remote attackers to execute arbitrary SQL commands via the mark[] parameter.
phpBB 2.0 through 2.0.3 generates names for uploaded avatar files with the hex-encoded IP address of the client system, which allows remote attackers to obtain client IP addresses.
Unspecified vulnerability in phpBB before 3.0.4 allows attackers to bypass intended access restrictions and activate de-activated accounts via unknown vectors.
Cross-site scripting (XSS) vulnerability in search.php in phpBB 2.0.3 and possibly earlier versions allows remote attackers to inject arbitrary web script or HTML via the searchusername parameter in searchuser mode.