CVE-2021-42669
Critical · 9.8CVSS
9.8
EPSS
23.3%
Published
Nov 5, 2021
CISA due date
—
The record
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 packages
| Ecosystem | Package | Introduced | Fixed |
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