SQL Injection Vulnerability in DeDeCMS by DeDeCMS
CVE-2026-76783

6.9MEDIUM

Key Information:

Vendor

DeDeCMS

Status
Dedecms
Vendor
CVE Published:
20 August 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-76783?

A security vulnerability has been identified in DeDeCMS version 53_1_UTF8, particularly in the advancedsearch.php file. This issue allows attackers to manipulate SQL queries through arguments, enabling unauthorized access to the database. The exploit can be executed remotely, putting systems at risk of data exposure or modification. With the vulnerability disclosed publicly, it is essential for users of DeDeCMS to take immediate protective measures to secure their applications.

Affected Version(s)

DeDeCMS 53_1_UTF8

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-2026-76783 - Proof of Concept

References

https://vuldb.com/vuln/393243
vdb-entrytechnical-description
https://vuldb.com/vuln/393243/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-76783
third-party-advisory

CVSS V4

Score:
6.9
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

hubdk01 (VulDB User)
.