Improper Privilege Management in Tourism Management System by Jaychouchannel
CVE-2026-90523

6.9MEDIUM

Key Information:

Vendor

Jaychouchannel

Status
Tourism-management-system
Vendor
CVE Published:
13 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-90523?

A vulnerability has been identified in the Jaychouchannel Tourism-Management-System, specifically in the User Register Endpoint within the UsersController.java file. This vulnerability arises from improper management of user privileges due to the manipulation of the UsersEntity argument. Attackers can exploit this vulnerability remotely, leading to unauthorized access or escalation of privileges. A patch has been released to address this issue, and users are strongly encouraged to apply it to safeguard their systems from potential exploitation.

Affected Version(s)

Tourism-Management-System 229956e20dbd4a80eeff14535e44d3099502af09

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-2026-90523 - Proof of Concept

References

https://vuldb.com/vuln/403113
vdb-entrytechnical-description
https://vuldb.com/vuln/403113/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-90523
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

Chenshiyi (VulDB User)
.