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TI-2021-18897 Aliases CVE-2021-42669GHSA-h6f4-pv83-7533

A file upload vulnerability exists in Sourcecodester Engineers Online Portal in PHP via…

Priority MEDIUM 62CWE-434Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-434.

Summary

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.

Why it matters now

EPSS 0.2327 97th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:engineers_online_portal_project:engineers_online_portal:-:*:*:*:*:*:*:*not specified by NVDVulnerableEngineers Online Portal Project
  • cpe:2.3:a:engineers_online_portal_project:engineers_online_portal:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Engineers Online Portal Project

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-42669
  2. 2026-10-03 Alias added: GHSA-h6f4-pv83-7533

References

Exploit 2

Advisory 1

  • TI-2023-04857 SourceCodester Engineers Online Portal remove_inbox_message.php sql injection CVSS 3.1CRITICAL 9.8
  • TI-2023-04855 SourceCodester Engineers Online Portal my_classmates.php sql injection CVSS 3.1CRITICAL 9.8
  • TI-2023-04858 SourceCodester Engineers Online Portal seed_message_student.php sql injection CVSS 3.1CRITICAL 9.8
  • TI-2023-04854 SourceCodester Engineers Online Portal login.php sql injection CVSS 3.1CRITICAL 9.8
  • TI-2023-04853 SourceCodester Engineers Online Portal student_avatar.php unrestricted upload CVSS 3.1CRITICAL 9.8
  • TI-2023-04852 SourceCodester Engineers Online Portal downloadable_student.php sql injection CVSS 3.1CRITICAL 9.8
See all 22 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences