Server-Side Request Forgery Vulnerability in bufanyun HotGo Product
CVE-2026-3683

5.3MEDIUM

Key Information:

Vendor

Bufanyun

Status
Hotgo
Vendor
CVE Published:
7 March 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-3683?

A vulnerability exists in bufanyun HotGo, particularly in the ImageTransferStorage function located in /server/internal/logic/common/upload.go. This vulnerability allows attackers to conduct server-side request forgery (SSRF) attacks, which can be executed remotely. The exploit is publicly available, and despite early notification to the vendor, no response has been received regarding the issue.

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Affected Version(s)

HotGo 2.0

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-2026-3683 - Proof of Concept

References

https://vuldb.com/?id.349585
vdb-entrytechnical-description
https://vuldb.com/?ctiid.349585
signaturepermissions-required
https://vuldb.com/?submit.765588
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

VulDB
JSON
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