Multiple parameters in register.php in PHPGurukul Student Record System 3.20 are vulnerable to SQL injection. These include: c-full, fname, mname,lname, gname, ocp, nation, mobno, email, board1, roll1, pyear1, board2, roll2, pyear2, sub1,marks1, sub2, course-short, income, category, ph, country, state, city, padd, cadd, and gender.