High severity8.8NVD Advisory· Published Sep 24, 2021· Updated Jun 17, 2026
CVE-2021-40309
CVE-2021-40309
Description
A SQL injection vulnerability exists in the Take Attendance functionality of OS4Ed's OpenSIS 8.0. allows an attacker to inject their own SQL query. The cp_id_miss_attn parameter from TakeAttendance.php is vulnerable to SQL injection. An attacker can make an authenticated HTTP request as a user with access to "Take Attendance" functionality to trigger this vulnerability.
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Affected products
1- OS4Ed/OpenSISdescription
Patches
Vulnerability mechanics
References
2- github.com/MiSERYYYYY/Vulnerability-Reports-and-Disclosures/blob/main/OpenSIS-Community-8.0.mdnvdExploitThird Party Advisory
- www.exploit-db.com/exploits/50249nvdExploitThird Party AdvisoryVDB Entry
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