The mosgetparam implementation in Joomla! before 1.0.10, does not set a variable's data type to integer when the variable's default value is numeric, which has unspecified impact and attack vectors, which may permit SQL injection attacks.
comcategories in Joomla! before 1.0.12 does not validate input, which has unknown impact and remote attack vectors.
Multiple SQL injection vulnerabilities in Joomla! before 1.0.10 allow remote attackers to execute arbitrary SQL commands via unspecified parameters involving the (1) "Remember Me" function, (2) "Related Items" module, and the (3) "Weblinks submission".