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TI-2026-03178 Aliases CVE-2026-3683GHSA-r4rq-7w7j-cmr6

bufanyun HotGo Endpoint upload.go ImageTransferStorage server-side request forgery

Priority MEDIUM 57CWE-918Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
Low · Low · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

A vulnerability was detected in bufanyun HotGo up to 2.0. This issue affects the function ImageTransferStorage of the file /server/internal/logic/common/upload.go of the component Endpoint. The manipulation results in server-side request forgery. The attack may be launched remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00234 14th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
bufanyunHotGo2.0—No fix listedCNA
  • HotGo Vendorbufanyun Affected 2.0 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-3683
  2. 2026-10-03 Alias added: GHSA-r4rq-7w7j-cmr6

References

Exploit 1

  • TI-2026-83839 HotGo Authentication Bypass via Client-Set SMS Verification Code CVSS 4.0CRITICAL 9.2
  • TI-2026-04588 bufanyun HotGo editNotice Endpoint MessageList.vue cross site scripting CVSS 4.0MEDIUM 5.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences