Unrestricted File Upload Vulnerability in Guchengwuyue Yshopmall
CVE-2026-2146

5.3MEDIUM

Key Information:

Vendor

Guchengwuyue

Status
Yshopmall
Vendor
CVE Published:
8 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-2146?

A security vulnerability has been identified in the Guchengwuyue Yshopmall application, specifically affecting versions up to 1.9.1. The flaw is present within the updateAvatar function located in the file /api/users/updateAvatar, related to co.yixiang.utils.FileUtil. This vulnerability allows an attacker to manipulate the File argument, resulting in unrestricted file uploads. Such exploitation can be performed remotely, making the application susceptible to various attacks, including potentially harmful file uploads. The issue was previously reported to the project maintainers, but as of now, there has been no response or patch provided.

Human OS v1.0:
Ageing Is an Unpatched Zero-Day Vulnerability.

Remediate biological technical debt. Prime Ageing uses 95% high-purity SIRT6 activation to maintain genomic integrity and bolster systemic resilience.

Deploy the Patch

Affected Version(s)

yshopmall 1.9.0

yshopmall 1.9.1

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-2026-2146 - Proof of Concept

References

https://vuldb.com/?id.344848
vdb-entrytechnical-description
https://vuldb.com/?ctiid.344848
signaturepermissions-required
https://vuldb.com/?submit.747409
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

mukyuuhate (VulDB User)
JSON
.