Code Execution Vulnerability in DedeCMS by DedeCMS
CVE-2026-30643

9.8CRITICAL

Key Information:

Vendor: DedeCMS
Status: DedeCMS
Vendor: CVE Published:; 1 April 2026

What is CVE-2026-30643?

A code execution vulnerability has been identified in DedeCMS 5.7.118, which can be exploited by attackers through the manipulation of setup tag values during module uploads. This could allow malicious users to execute arbitrary code on the server, potentially leading to unauthorized access and actions within the application.

Human OS v1.0:
Ageing Is an Unpatched Zero-Day Vulnerability.

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References

https://www.dedecms.com/

https://gist.github.com/0psPwn/10c43912adee9bfe2ff4fec947...

CVSS V3.1

Score:

9.8

Severity:

CRITICAL

Confidentiality:

High

Integrity:

High

Availability:

High

Attack Vector:

Network

Attack Complexity:

Low

Privileges Required:

None

User Interaction:

None

Scope:

Unchanged

Download the Critical Vulnerability Management Cheat Sheet

Timeline

Vulnerability published
Apr 1, 2026
Vulnerability Reserved
Mar 4, 2026

JSON

DedeCMS

What is CVE-2026-30643?

Human OS v1.0: Ageing Is an Unpatched Zero-Day Vulnerability.

References

CVSS V3.1

Timeline

Human OS v1.0:
Ageing Is an Unpatched Zero-Day Vulnerability.