Arbitrary file upload in Online Examination System - CVE-2026-1423
Published: January 27, 2026
Vulnerability identifier: #VU122069
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-1423
CWE-ID: CWE-434
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to insufficient validation of file during file upload within the /admin_pic.php file. A remote attacker can upload a malicious file and execute it on the server.
Affected software
Online Examination System
How to mitigate CVE-2026-1423
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.