SQL injection vulnerabilities exist in the course_period_id parameters used in OS4Ed openSIS 7.3 pages. The course_period_id parameter in the page CpSessionSet.php is vulnerable to SQL injection.An attacker can make an authenticated HTTP request to trigger these vulnerabilities.
https://talosintelligence.com/vulnerability_reports/TALOS-2020-1076
https://talosintelligence.com/vulnerability_reports/TALOS-2020-1076
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6129