Path Traversal Vulnerability in ThingsGateway 12 by ThingsGateway
CVE-2026-4233

5.3MEDIUM

Key Information:

Vendor

ThingsGateway

Status
Thingsgateway
Vendor
CVE Published:
16 March 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-4233?

A vulnerability in ThingsGateway version 12 allows for path traversal through an exploitation of the file download API. Specifically, manipulation of the 'fileName' argument could enable attackers to access files that are outside of the intended directory, facilitating the unauthorized retrieval of sensitive data. Due to the potential for remote exploitation, this vulnerability poses significant risks, especially as the exploit is publicly available. Attempts to notify the vendor regarding this issue yielded no response.

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Affected Version(s)

ThingsGateway 12

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-2026-4233 - Proof of Concept

References

https://vuldb.com/?id.351156
vdb-entrytechnical-description
https://vuldb.com/?ctiid.351156
signaturepermissions-required
https://vuldb.com/?submit.771234
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
None
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

sourbyte (VulDB User)
VulDB
JSON
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