Authorization Bypass in Tourism-Management-System by jaychouchannel
CVE-2026-90521

5.3MEDIUM

Key Information:

Vendor

Jaychouchannel

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

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-90521?

A security vulnerability has been identified in the Tourism-Management-System by jaychouchannel. An authorization bypass occurs due to improper handling of user-controlled ID parameters in the MenpiaodingdanController.java file. This flaw can be exploited remotely, allowing attackers to gain unauthorized access to sensitive resources. It is critical for all users of affected versions to promptly apply the available patch, which addresses this vulnerability and ensures the integrity and security of the system.

Affected Version(s)

Tourism-Management-System 8122bf020d91199eddfff3ee02d1632a70a9a132

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-2026-90521 - Proof of Concept

References

https://vuldb.com/vuln/403111
vdb-entrytechnical-description
https://vuldb.com/vuln/403111/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-90521
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

Djie (VulDB User)
.