CVE-2026-4563Public exploitNetwork attack vector

Cross-account order disclosure via missing ownership check

Published Mar 22, 2026 · Updated Mar 22, 2026

Authorization bypass in MacCMS 2025.1000.4052 allows remote authenticated users to read other users' order details via order_id. The order_info function passes an attacker-selected order_id to Order::infoData, which returns the matching record without constraining user_id to the logged-in account. Any member account can enumerate order identifiers and disclose order codes, amounts, and remarks belonging to other users; no write access is reported.

CVSS severityUnavailable
Unscored
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in MacCMS 2025.1000.4052 allows remote authenticated users to read other users' order details via order_id. The order_info function passes an attacker-selected order_id to Order::infoData, which returns the matching record without constraining user_id to the logged-in account. Any member account can enumerate order identifiers and disclose order codes, amounts, and remarks belonging to other users; no write access is reported.

The record

CVE
CVE-2026-4563
Published
Mar 22, 2026
Updated
Mar 22, 2026
Vendor
MacCMS Pro
Product
MacCMS
Classifications
CWE-285, CWE-639, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 22, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 22, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2025.1000.4052

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

MacCMS Pro · MacCMSversion=2025.1000.4052

Published CVSS scores

4.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
4.3VulDBCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
2.1VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
4.0VulDBAV:N/AC:L/Au:S/C:P/I:N/A:N/E:POC/RL:ND/RC:UR

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-285Improper Authorization
CWE-639Authorization Bypass Through User-Controlled Key
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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