SQL injection vulnerability in root/includes/prime_quick_style.php in the Prime Quick Style addon before 1.2.3 for phpBB 3 allows remote authenticated users to execute arbitrary SQL commands via the prime_quick_style parameter to ucp.php.
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.