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CVE-2026-4562— MacCMS Timming API Endpoint Timming.php weak authentication

Quick assessment

Affected
n/a MacCMS
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

maccms是magicblack开源的一套采用 PHP+MYSQL 环境下运行的完善而强大的快速建站系统。 MacCMS 2025.1000.4052版本存在访问控制错误漏洞，该漏洞源于文件application/api/controller/Timming.php中的Timming API Endpoint组件缺少身份验证，可能导致远程攻击。

CVSS 7.3 · High EPSS 0.65% · P50

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-4562

Vulnerability Information
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Vulnerability Title
MacCMS Timming API Endpoint Timming.php weak authentication
Source: CVE Program / CVE List V5
Vulnerability Description
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 attack may be performed from remote. The exploit has been released to the public and may be used for attacks.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
maccms 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
maccms是magicblack开源的一套采用 PHP+MYSQL 环境下运行的完善而强大的快速建站系统。 MacCMS 2025.1000.4052版本存在访问控制错误漏洞，该漏洞源于文件application/api/controller/Timming.php中的Timming API Endpoint组件缺少身份验证，可能导致远程攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- MacCMS 2025.1000.4052 cpe:2.3:a:maccms:maccms:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-4562

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 7785 chars
GitHub 复现环境（可 clone 直接跑）
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III. Intelligence Information for CVE-2026-4562

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Vendor Advisories for CVE-2026-4562 (2)

Same Patch Batch · n/a · 2026-03-22 · 7 CVEs total

CVE-2026-4542 5.4 MEDIUM SSCMS layerImage Endpoint LayerImageController.Submit.cs path traversal
CVE-2026-4538 5.3 MEDIUM PyTorch pt2 Loading deserialization
CVE-2026-4531 5.3 MEDIUM Free5GC AMF handler.go HandleRegistrationComplete denial of service
CVE-2026-4563 4.3 MEDIUM MacCMS Member Order Detail User.php order_info authorization
CVE-2026-4115 3.7 LOW PuTTY Ed25519 Signature ecc-ssh.c eddsa_verify signature verification
CVE-2026-4539 3.3 LOW pygments archetype.py AdlLexer redos

IV. Related Vulnerabilities

Same product: MacCMS
Same vendor: n/a
Same weakness: CWE-306

V. Comments for CVE-2026-4562

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