Code Injection Vulnerability in DedeCMS by DedeTechnology
CVE-2026-116063

5.1MEDIUM

Key Information:

Vendor

DedeTechnology

Status
Dedecms
Vendor
CVE Published:
25 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-116063?

A vulnerability exists in DedeCMS versions up to and including 5.7.118, specifically in the require_once function of the file dede/update_guide.php. This flaw allows an attacker to manipulate the vtime argument, facilitating code injection. Such a vulnerability can be remotely exploited, thus posing a significant security risk to users of this content management system. Publicly available exploits can further increase the urgency for users to apply any necessary patches and secure their applications.

Affected Version(s)

DedeCMS 5.7.118

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-2026-116063 - Proof of Concept

References

https://vuldb.com/vuln/426146
vdb-entrytechnical-description
https://vuldb.com/vuln/426146/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-116063
third-party-advisory

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
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

Fantiane (VulDB User)
.