CVE-2021-42669

CRITICAL

9.8

CVSS Severity Score

EPSS Score0.1610%

EPSS Percentile16.72th

PublishedNov 5, 2021

Last ModifiedNov 21, 2024

Vulnerability Description

A file upload vulnerability exists in Sourcecodester Engineers Online Portal in PHP via dashboard_teacher.php, which allows changing the avatar through teacher_avatar.php. Once an avatar gets uploaded it is getting uploaded to the /admin/uploads/ directory, and is accessible by all users. By uploading a php webshell containing "<?php system($_GET["cmd"]); ?>" the attacker can execute commands on the web server with - /admin/uploads/php-webshell?cmd=id.

Affected Platforms (CPE)

📦

Engineers Online Portal Project

Engineers Online Portal

All versions

References & Advisories

🔗 https://github.com/TheHackingRabbi/CVE-2021-42669

🔗 https://github.com/nu11secur1ty/CVE-mitre/tree/main/CVE-2021-42671

🔗 https://www.sourcecodester.com/php/13115/engineers-online-portal-php.html