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VULNERABILITIES

CVE-2021-42669 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://github.com/nu11secur1ty/CVE-mitre/tree/main/CVE-2021-42671 CVEExploitThird Party Advisory
https://github.com/TheHackingRabbi/CVE-2021-42669 CVEExploitThird Party Advisory
https://www.sourcecodester.com/php/13115/engineers-online-portal-php.html CVEProductThird Party Advisory
https://github.com/nu11secur1ty/CVE-mitre/tree/main/CVE-2021-42671 [email protected]ExploitThird Party Advisory
https://github.com/TheHackingRabbi/CVE-2021-42669 [email protected]ExploitThird Party Advisory

see all 6 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-434Unrestricted Upload of File with Dangerous Type[email protected]

Affected Products

ProductVersions
engineers online portal project engineers online portal
All versions

CPE

  • cpe:2.3:a:engineers_online_portal_project:engineers_online_portal:-:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

6 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2021-42669
NVD Published Date:
Nov 5, 2021
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2021-42669 Details - Not Deferred