Multiple SQL injection vulnerabilities in PunBB 1.2.1 allow remote attackers to execute arbitrary SQL commands via the (1) language parameter to register.php, (2) change email feature in profile.php, (3) posts or (4) topics parameter to moderate.php.
https://exchange.xforce.ibmcloud.com/vulnerabilities/19473
http://www.punbb.org/changelogs/1.2.1_to_1.2.2.txt
http://secunia.com/advisories/14538