Improper Authorization Vulnerability in Kongxin-Github Java Library Management System
CVE-2026-124621

5.3MEDIUM

Key Information:

Vendor

Kongxin-github

Status
Java Library Management System
Vendor
CVE Published:
9 November 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-124621?

A vulnerability in the Kongxin-Github Java Library Management System was identified, specifically within the functions handling update operations and management tasks in the Swing UI Layer. This flaw reflects improper authorization, thereby allowing remote attackers to manipulate functions such as deleting users and books without appropriate permissions. The issue has been publicly disclosed, and exploitation is feasible. Although the project has been made aware of this vulnerability, a response has yet to be provided.

Affected Version(s)

Java_Library_Management_System 70a6eb6b96fe64575d8051f1a59055bfc5dc5885

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-2026-124621 - Proof of Concept

References

https://vuldb.com/vuln/433046
vdb-entrytechnical-description
https://vuldb.com/vuln/433046/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-124621
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

ME4Dream (VulDB User)
VulDB CNA Team
.