CVE-2021-41679

Name: CVE-2021-41679
Creator: NVD / NIST
Published: 2021-11-30T14:15:08.033+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.31%

Last modified Jun 17, 2026

CVE-2021-41679 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A SQL injection vulnerability exists in version 8.0 of openSIS when MySQL or MariaDB is used as the application database. An attacker can then issue the SQL command through the /opensis/modules/grades/InputFinalGrades.php, period parameter.. EPSS estimates a 1.31% chance of exploitation in the next 30 days.

Description

A SQL injection vulnerability exists in version 8.0 of openSIS when MySQL or MariaDB is used as the application database. An attacker can then issue the SQL command through the /opensis/modules/grades/InputFinalGrades.php, period parameter.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

1.31%

66.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-89

Affected Software

Vendor	Product	Versions
Os4ed	Opensis	8.0

References

https://github.com/OS4ED/openSIS-Classic/issues/204Exploit, Issue Tracking, Third Party Advisory
https://github.com/OS4ED/openSIS-Classic/issues/204Exploit, Issue Tracking, Third Party Advisory

Timeline

Published: Nov 30, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-41679?

How severe is CVE-2021-41679?

CVE-2021-41679 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.31% probability of exploitation in the next 30 days.

How do I fix CVE-2021-41679?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-41679?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST