CVE-2021-26822

Name: CVE-2021-26822
Creator: NVD / NIST
Published: 2021-02-15T21:15:13.467+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 4.84%

Last modified Jun 17, 2026

CVE-2021-26822 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Teachers Record Management System 1.0 is affected by a SQL injection vulnerability in 'searchteacher' POST parameter in search-teacher.php. This vulnerability can be exploited by a remote unauthenticated attacker to leak sensitive information and perform code execution attacks.. EPSS estimates a 4.84% chance of exploitation in the next 30 days.

Description

Teachers Record Management System 1.0 is affected by a SQL injection vulnerability in 'searchteacher' POST parameter in search-teacher.php. This vulnerability can be exploited by a remote unauthenticated attacker to leak sensitive information and perform code execution attacks.

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

4.84%

90.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-89

Affected Software

Vendor	Product	Versions
Phpgurukul	Teachers Record Management System	1.0

References

https://github.com/nu11secur1ty/CVE-mitre/tree/main/CVE-2021-26822Exploit, Third Party Advisory
https://phpgurukul.com/teachers-record-management-system-using-php-and-mysql/Product, Third Party Advisory
https://www.exploit-db.com/exploits/49562Exploit, Third Party Advisory, VDB Entry
https://github.com/nu11secur1ty/CVE-mitre/tree/main/CVE-2021-26822Exploit, Third Party Advisory
https://phpgurukul.com/teachers-record-management-system-using-php-and-mysql/Product, Third Party Advisory
https://www.exploit-db.com/exploits/49562Exploit, Third Party Advisory, VDB Entry

Timeline

Published: Feb 15, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-26822?

How severe is CVE-2021-26822?

CVE-2021-26822 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 4.84% probability of exploitation in the next 30 days.

How do I fix CVE-2021-26822?

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-2021-26822?

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

Scan your code now

Source: NVD / NIST