Authorization Flaw in Zhong Bang CRMEB Affects Remote Access
CVE-2026-1734

6.9MEDIUM

Key Information:

Vendor

Zhong Bang

Status
Crmeb
Vendor
CVE Published:
1 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-1734?

A vulnerability in Zhong Bang's CRMEB up to version 5.6.3 allows remote attackers to exploit missing authorization in the crontab Endpoint (CrontabController.php). This security flaw exposes unknown code within the application, potentially leading to unauthorized access. The issue has been publicly disclosed, and the vendor failed to respond to early reports of the vulnerability, increasing the risk of exploitation.

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Affected Version(s)

CRMEB 5.6.0

CRMEB 5.6.1

CRMEB 5.6.2

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-2026-1734 - Proof of Concept

References

https://vuldb.com/?id.343633
vdb-entry
https://vuldb.com/?ctiid.343633
signaturepermissions-required
https://vuldb.com/?submit.736619
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
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

Ho Cherry (VulDB User)
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