What is CVE-2026-4562?

CVE-2026-4562 is a high-severity vulnerability in Maccms, classified under Improper Authentication. CVSS score: 7.3/10. Published 2026-03-23.

How severe is CVE-2026-4562?

High severity. CVSS v3 base score is 7.3 out of 10.

Auth bypass in Maccms

CVE-2026-4562

A security flaw has been discovered in MacCMS 2025.1000.4052. This affects an unknown part of the file application/api/controller/Timming.php of the component Timming API Endpoint. The manipulation results in missing authentication. The at…

Vulnerability class: Broken Authentication

EPSS: 0.001 (24.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.

Affected products

N/a Maccms — versions 2025.1000.4052

Weakness classification (CWE)

References

VDB-352399 | MacCMS Timming API Endpoint Timming.php weak authentication (vdb-entry)
VDB-352399 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
Submit #775039 | Maccms MacCMS 2025.1000.4052 Missing Authentication (third-party-advisory)
cna@vuldb.com (issue-tracking, exploit)

Frequently asked questions

What is CVE-2026-4562?: CVE-2026-4562 is a high-severity vulnerability in Maccms, classified under Improper Authentication. CVSS score: 7.3/10. Published 2026-03-23.
How severe is CVE-2026-4562?: High severity. CVSS v3 base score is 7.3 out of 10.