Unrestricted File Upload Vulnerability in Lenve VHR 1.0-SNAPSHOT by Lenve
CVE-2026-90500

5.3MEDIUM

Key Information:

Vendor

Lenve

Status
Vhr
Vendor
CVE Published:
13 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-90500?

A security weakness has been discovered in Lenve VHR 1.0-SNAPSHOT related to its Avatar Upload component. Specifically, the FastDFSUtils.upload function within the userface file is vulnerable to unrestricted file upload. This design flaw allows malicious actors to upload files without proper validation, potentially resulting in unauthorized access or attacks. The exploit is executable remotely, increasing the threat level as it can be leveraged without physical access. Despite the early notification to the vendor, there has been no response regarding remediation of this issue.

Affected Version(s)

vhr 1.0-SNAPSHOT

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-2026-90500 - Proof of Concept

References

https://vuldb.com/vuln/403088
vdb-entrytechnical-description
https://vuldb.com/vuln/403088/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-90500
third-party-advisory

CVSS V4

Score:
5.3
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

huluwa888 (VulDB User)
VulDB CNA Team
.