Multiple SQL injection vulnerabilities in usersL.php3 in PHPMyChat 0.14.5 allow remote attackers to execute arbitrary SQL commands via the (1) sortBy, (2) sortOrder, (3) startReg, (4) U, (5) LastCheck , and (6) R parameters.
Improper Neutralization of Special Elements used in an SQL Command The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.