CVE-2025-34282

Critical

Description

ThingsBoard versions < 4.2.1 contain a server-side request forgery (SSRF) vulnerability in the dashboard's Image Upload Gallery feature. An attacker can upload a malicious SVG file that references a remote URL. If the server processes the SVG file in a way that parses external references, it may initiate unintended outbound requests. This can be used to access internal services or resources.

SeverityCritical

CVSS9.1

Exploit probability79. percentile1.8%

ProductThingsboard

PublishedOct 17, 2025

First seenOct 17, 2025

Weakness typeCWE-918Server-side request forgery (SSRF)

How to fix

Update

thingsboard thingsboard4.2.1 or later

Patches

github.com/thingsboard/thingsboard/releases/tag/v4.2.1

Affected products

Product	Affected versions	Fixed in
thingsboard thingsboard	v < 4.2.1	4.2.1

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