A vulnerability classified as critical was found in SourceCodester Online Class and Exam Scheduling System 1.0. Affected by this vulnerability is an unknown functionality of the file /pages/faculty_sched.php. The manipulation of the argument faculty with the input ' OR (SELECT 2078 FROM(SELECT COUNT(*),CONCAT(0x716a717071,(SELECT (ELT(2078=2078,1))),0x717a706a71,FLOOR(RAND(0)*2))x FROM INFORMATION_SCHEMA.PLUGINS GROUP BY x)a)-- uYCM leads to sql injection. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-205831.