Access Control Vulnerability in Mayuri K Best Courier Management System by SourceCodester
CVE-2026-5330

6.9MEDIUM

Key Information:

Vendor

Sourcecodester
Status
Best Courier Management System
Vendor
CVE Published:
2 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-5330?

An access control vulnerability exists in the User Delete Handler of the mayuri_k Best Courier Management System 1.0, specifically through the /ajax.php?action=delete_user endpoint. By manipulating the ID parameter in the request, an unauthenticated attacker may gain unauthorized access to delete user accounts. This flaw highlights significant security concerns, as it allows for remote exploitation and poses risks to user data integrity. The vulnerability has been publicly disclosed, making it imperative for users of the affected system to implement appropriate security measures.

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Affected Version(s)

Best Courier Management System 1.0

Best Courier Management System 1.0

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-2026-5330 - Proof of Concept

References

https://vuldb.com/vuln/354664
vdb-entrytechnical-description
https://vuldb.com/vuln/354664/cti
signaturepermissions-required
https://vuldb.com/submit/780734
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
None
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

Zyyyy (VulDB User)
JSON
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