CVE-2021-42668

Name: CVE-2021-42668
Creator: NVD / NIST
Published: 2021-11-05T13:15:09.113+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 4.65%

Last modified Jun 17, 2026

CVE-2021-42668 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A SQL Injection vulnerability exists in Sourcecodester Engineers Online Portal in PHP via the id parameter in the my_classmates.php web page.. As a result, an attacker can extract sensitive data from the web server and in some cases can use this vulnerability in order to get a remote code execution on the remote web server.. EPSS estimates a 4.65% chance of exploitation in the next 30 days.

Description

A SQL Injection vulnerability exists in Sourcecodester Engineers Online Portal in PHP via the id parameter in the my_classmates.php web page.. As a result, an attacker can extract sensitive data from the web server and in some cases can use this vulnerability in order to get a remote code execution on the remote web server.

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

4.65%

90.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-89

Affected Software

Vendor	Product	Versions
Engineers Online Portal Project	Engineers Online Portal	All versions

References

https://github.com/TheHackingRabbi/CVE-2021-42668Exploit, Third Party Advisory
https://github.com/nu11secur1ty/CVE-mitre/tree/main/CVE-2021-42668Exploit, Third Party Advisory
https://www.nu11secur1ty.com/2021/12/cve-2021-42668.htmlExploit, Third Party Advisory
https://www.sourcecodester.com/php/13115/engineers-online-portal-php.htmlProduct, Third Party Advisory
https://github.com/TheHackingRabbi/CVE-2021-42668Exploit, Third Party Advisory
https://github.com/nu11secur1ty/CVE-mitre/tree/main/CVE-2021-42668Exploit, Third Party Advisory
https://www.nu11secur1ty.com/2021/12/cve-2021-42668.htmlExploit, Third Party Advisory
https://www.sourcecodester.com/php/13115/engineers-online-portal-php.htmlProduct, Third Party Advisory

Timeline

Published: Nov 5, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-42668?

How severe is CVE-2021-42668?

CVE-2021-42668 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 4.65% probability of exploitation in the next 30 days.

How do I fix CVE-2021-42668?

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-2021-42668?

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

Scan your code now

Source: NVD / NIST