SQL injection vulnerability exists in the CoursePeriodModal.php page of OS4Ed openSIS 7.3. A specially crafted HTTP request can lead to SQL injection. The meet_date parameter in the page CoursePeriodModal.php is vulnerable to SQL injection. An attacker can make an authenticated HTTP request to trigger this vulnerability.
https://talosintelligence.com/vulnerability_reports/TALOS-2020-1075
https://talosintelligence.com/vulnerability_reports/TALOS-2020-1075
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6128