index2.php in ACGVannu 1.3 and earlier allows remote attackers to change the password or profile of a user via a modified id parameter, related to templates/modif.html. NOTE: some of these details are obtained from third party information.
https://www.exploit-db.com/exploits/3208
https://exchange.xforce.ibmcloud.com/vulnerabilities/31893
http://www.vupen.com/english/advisories/2007/0388