CVE-2021-42580

Sourcecodester Online Learning System 2.0 is vunlerable to sql injection authentication bypass in admin login file (/admin/login.php) and authenticated file upload in (Master.php) file , we can craft these two vunlerablities to get unauthenticated remote command execution.

CVSS v3.1 NVD

9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 NVD

7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS

9.98% chance of exploitation in the next 30 days, 96th percentile

Published

2021-11-15

Updated

2024-08-04

Proof-of-concept exploits (2)

• http://packetstormsecurity.com/files/164985/Online-Learning-System-2.0-Remote-Code-Execut…
• nu11secur1ty/CVE-nu11secur1ty/tree/main/vendors/oretnom23/CVE-nu11-0754★ · 2026-10-09

ExploitDB entries (1)

• https://www.exploit-db.com/exploits/50526

Security advisories

• DjebbarAnon/online-learning-system-v2-sqli-authentication-bypass-file-upload-unauthentica…
• https://www.nu11secur1ty.com/2021/09/cve-nu11-07-elearning-v2by-oretnom23-is.html
• https://www.nu11secur1ty.com/2021/11/cve-2021-42580.html

References

• CVE Record
• NVD entry