Unspecified vulnerability in phpBB before 2.0.22 has unknown impact and remote attack vectors related to a "negative start parameter."
SQL injection vulnerability in Gender MOD 1.1.3 allows remote attackers to gain administrative access via the user_level parameter in the User Profile page.
db.php in phpBB 2.0 (aka phpBB2) RC-3 and earlier allows remote attackers to execute arbitrary code from remote servers via the phpbb_root_path parameter.
Certain forms in phpBB before 2.0.22 lack session checks, which has unknown impact and remote attack vectors.
admin_ug_auth.php in phpBB 2.0.0 allows local users to gain administrator privileges by directly calling admin_ug_auth.php with modifed form fields such as "u".
PHP remote file inclusion vulnerability in includes/usercp_register.php in phpBB 2.0.19 allows remote attackers to execute arbitrary PHP code via a URL in the phpbb_root_path parameter. NOTE: this issue has been disputed by third-party researchers, stating that the file checks for a global constant and cannot be accessed directly