Authorization Bypass in Online Clinic Management System by Subhajitkhan
CVE-2026-90858

6.9MEDIUM

Key Information:

Vendor

Subhajitkhan

Status
Online-clinic-management-system
Vendor
CVE Published:
15 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-90858?

A vulnerability has been identified in the online clinic management system developed by Subhajitkhan, specifically in the 'session_start' function located in adminappview.php. This flaw arises from an improper handling of the 'adminmail' argument, which can allow attackers to bypass authentication mechanisms. The exploitation of this vulnerability can be executed remotely, potentially compromising user accounts and system integrity. Despite early notification to the project maintainers via an issue report, there has been no response or resolution provided yet.

Affected Version(s)

online-clinic-management-system e9ee77a8827a1446220fa07ee693dc4d9a29a578

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-90858 - Proof of Concept

References

https://vuldb.com/vuln/403415
vdb-entrytechnical-description
https://vuldb.com/vuln/403415/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-90858
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

ovoxyc (VulDB User)
VulDB CNA Team
.