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Vulnerability record · CVE-2021-3239 · published 15 February 2021

CVE-2021-3239: E-learning system project e-learning system sql injection vulnerability

E Learning System Project · E Learning System

E-Learning System 1.0 suffers from an unauthenticated SQL injection vulnerability, which allows remote attackers to execute arbitrary code on the hosting web server and gain a reverse shell.

9.8 CVSS 3.1 Critical EPSS 18% · top 2.9% CWE-89 · SQL injection
9.8CVSS 3.1 base score, v2 7.5
18%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
10References, 8 tagged exploit
17 Jun 2026Last modified by NVD

Description

E-Learning System 1.0 suffers from an unauthenticated SQL injection vulnerability, which allows remote attackers to execute arbitrary code on the hosting web server and gain a reverse shell.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/TCSWT/E-Learning-System/blob/main/README.md ExploitThird Party Advisory
https://github.com/nu11secur1ty/CVE-nu11secur1ty/tree/main/vendors/janobe/CVE-nu11-101821 ExploitThird Party Advisory
https://packetstormsecurity.com/files/160966/E-Learning-System-1.0-SQL-Injection-Shell-Upload.html ExploitThird Party AdvisoryVDB Entry
https://www.exploit-db.com/exploits/49434 ExploitThird Party AdvisoryVDB Entry
https://www.sourcecodester.com/php/12808/e-learning-system-using-phpmysqli.html ProductThird Party Advisory
https://github.com/TCSWT/E-Learning-System/blob/main/README.md ExploitThird Party Advisory
https://github.com/nu11secur1ty/CVE-nu11secur1ty/tree/main/vendors/janobe/CVE-nu11-101821 ExploitThird Party Advisory
https://packetstormsecurity.com/files/160966/E-Learning-System-1.0-SQL-Injection-Shell-Upload.html ExploitThird Party AdvisoryVDB Entry
https://www.exploit-db.com/exploits/49434 ExploitThird Party AdvisoryVDB Entry
https://www.sourcecodester.com/php/12808/e-learning-system-using-phpmysqli.html ProductThird Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2021-3239), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.