Unspecified vulnerability in phpBB before 3.0.4 allows attackers to bypass intended access restrictions and activate de-activated accounts via unknown vectors.
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.
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.