CVE-2021-40543

9.8 criticalEPSS 1.1%

Critical (9.8) in os4ed opensis. EPSS 1.1% chance of exploitation in the next 30 days.

Opensis-Classic Version 8.0 is affected by a SQL injection vulnerability due to a lack of sanitization of input data at two parameters $_GET['usrid'] and $_GET['prof_id'] in the PasswordCheck.php file.

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 1.1% chance of exploitation in the next 30 days; higher than 66% of CVEs (scores of 2026-10-31)
CWE: CWE-89
Published: 2021-10-11
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

os4ed:opensis

References

https://github.com/OS4ED/openSIS-Classic/issues/191
https://github.com/OS4ED/openSIS-Classic/issues/191

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