WordPress Plugin Couponer print-coupon.php SQL Injection

WordPress Plugin Couponer is prone to an SQL injection vulnerability because it fails to sufficiently sanitize user-supplied data before using it in an SQL query. Exploiting this issue could allow an attacker to compromise the application access or modify data or exploit latent vulnerabilities in the underlying database. Successful exploitation requires that magic_quotes directive is set to Off. WordPress Plugin Couponer version 1.2 is vulnerable prior versions may also be affected.