Cross Site Scripting Vulnerability in PHPGurukul Hostel Management System
CVE-2026-90850

4.8MEDIUM

Key Information:

Vendor

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

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-90850?

A cross site scripting vulnerability has been identified in PHPGurukul Hostel Management System version 3.0, specifically in the manage-students.php file. This vulnerability allows attackers to inject malicious scripts that can be executed in the context of the user's browser. The attack can be initiated remotely, which poses a significant risk to users accessing the platform. Given that the exploit has been made public, organizations using this system should take immediate measures to patch the vulnerability and safeguard their applications from potential attacks.

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-2026-90850 - Proof of Concept

References

https://vuldb.com/vuln/403405
vdb-entry
https://vuldb.com/vuln/403405/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-90850
third-party-advisory

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

n4k3r0 (VulDB User)
.