What’s Vulnerable › Vulnerabilities
CVE-2021-40309
- Severity: high (CVSS 8.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.8% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2021-09-24 · updated 2026-06-17
- Weakness: CWE-89
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.
Affected products
References
- https://github.com/MiSERYYYYY/Vulnerability-Reports-and-Disclosures/blob/main/OpenSIS-Community-8.0.md
- https://github.com/OS4ED/openSIS-Classic
- https://www.exploit-db.com/exploits/50249
- https://github.com/MiSERYYYYY/Vulnerability-Reports-and-Disclosures/blob/main/OpenSIS-Community-8.0.md
- https://github.com/OS4ED/openSIS-Classic
- https://www.exploit-db.com/exploits/50249
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