SQL injection vulnerability in auth2db 0.2.5, and possibly other versions before 0.2.7, uses the addslashes function instead of the mysql_real_escape_string function, which allows remote attackers to conduct SQL injection attacks using multibyte character encodings.
https://exchange.xforce.ibmcloud.com/vulnerabilities/49518
http://www.securityfocus.com/bid/34287
http://www.debian.org/security/2009/dsa-1757
http://www.auth2db.com.ar/?title=CHANGELOG