Unrestricted File Upload Vulnerability in crmeb_java by ZBJK
CVE-2026-7673

5.1MEDIUM

Key Information:

Vendor

ZBJK

Status
Crmeb Java
Vendor
CVE Published:
3 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-7673?

A vulnerability in the crmeb_java product version up to 1.3.4 has been identified that allows for unrestricted file uploads through the Admin Upload component. Specifically, the issue resides in the UploadServiceImpl.java file, where manipulation of the model argument can lead to unauthorized file uploads. This creates the potential for remote attackers to exploit the vulnerability. The exploit has been made public, increasing the urgency for users to implement necessary protective measures. Despite early disclosure attempts, the vendor has not responded to address the issue.

Affected Version(s)

crmeb_java 1.3.0

crmeb_java 1.3.1

crmeb_java 1.3.2

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-2026-7673 - Proof of Concept

References

https://vuldb.com/vuln/360826
vdb-entrytechnical-description
https://vuldb.com/vuln/360826/cti
signaturepermissions-required
https://vuldb.com/submit/800684
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

xcxr (VulDB User)
VulDB CNA Team
.