Authorization Bypass in MacCMS Affects Member Order Detail Interface
CVE-2026-4563

5.3MEDIUM

Key Information:

Vendor

MacCMS

Status
Maccms
Vendor
CVE Published:
22 March 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-4563?

A vulnerability has been discovered in MacCMS versions prior to 2025.1000.4052, specifically within the order_info function located in the User.php file of the Member Order Detail Interface. This security flaw allows an attacker to manipulate the order_id argument, potentially leading to unauthorized access to sensitive user information. The exploit is publicly available, making it imperative for users to ensure their installations are updated to mitigate the risk of remote attacks.

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Affected Version(s)

MacCMS 2025.1000.4052

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-2026-4563 - Proof of Concept

References

https://vuldb.com/?id.352400
vdb-entrytechnical-description
https://vuldb.com/?ctiid.352400
signaturepermissions-required
https://vuldb.com/?submit.775050
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
None
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

HuajiHD (VulDB User)
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