PT-2021-19699 · Unknown · E-Learning System

Nu11Secur1Ty · Published 2021-02-15 · Updated 2026-06-07 · CVE-2021-3239

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions: E-Learning System version 1.0

Description: The issue allows remote attackers to execute arbitrary code on the hosting web server and gain a reverse shell through an unauthenticated SQL injection.

Recommendations: For E-Learning System version 1.0, update to a version that includes a fix for the SQL injection issue, as no specific workaround is provided for this version. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

SQL injection

Weakness Enumeration

CWE-89

Related Identifiers

CVE-2021-3239

Affected Products

E-Learning System

References · 8

• 🔥 https://github.com/nu11secur1ty/CVE-nu11secur1ty/tree/main/vendors/janobe/CVE-nu11-101821 · Exploit
• 🔥 https://packetstormsecurity.com/files/160966/E-Learning-System-1.0-SQL-Injection-Shell-Upload.html · Exploit
• 🔥 https://github.com/TCSWT/E-Learning-System/blob/main/README.md · Exploit
• 🔥 https://exploit-db.com/exploits/49434 · Exploit
• https://osv.dev/vulnerability/CVE-2021-3239 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-3239 · Security Note
• https://twitter.com/pdnuclei_bot/status/2063605278076252224 · Twitter Post
• https://sourcecodester.com/php/12808/e-learning-system-using-phpmysqli.html · Note