Improper Access Control Flaw in PHPGurukul Hostel Management System
CVE-2026-90851

5.3MEDIUM

Key Information:

Vendor

PHPgurukul
Status
Hostel Management System
Vendor
CVE Published:
15 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-90851?

A security flaw has been identified in the PHPGurukul Hostel Management System 3.0, specifically within the /admin/includes/checklogin.php file. This issue arises from improper handling of the argument ID, which leads to inadequate access controls. As a result, an attacker may exploit this vulnerability remotely, enabling unauthorized access and manipulation of sensitive information. Published exploit details suggest that this vulnerability poses a concrete risk to users of the affected system.

Affected Version(s)

Hostel Management System 3.0

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-2026-90851 - Proof of Concept

References

https://vuldb.com/vuln/403406
vdb-entrytechnical-description
https://vuldb.com/vuln/403406/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-90851
third-party-advisory

CVSS V4

Score:
5.3
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

n4k3r0 (VulDB User)
.