Critical · published October 17, 2025
⚠️ A sneaky SVG file could be your server's uninvited guest! If you're using ThingsBoard versions < 4.2.1, you may have a Server-Side Request Forgery (SSRF) vulnerability lurking in your Image Upload Gallery. 🔍 Think of it as a restaurant that allows customers to bring in their own recipes but doesn't check what they contain—one bad recipe could lead to a surprise dish no one ordered! Just like that, an attacker can slip in malicious SVG files that could poke around your server's internal services. This vulnerability allows an attacker to upload an SVG file that could trigger unintended external requests. If the server processes this file improperly, it could expose sensitive internal services to the outside world—definitely not the kind of dinner party you want to host!
Think of it as a restaurant that allows customers to bring in their own recipes but doesn't check what they contain—one bad recipe could lead to a surprise dish no one ordered! Just like that, an attacker can slip in malicious SVG files that could poke around your server's internal services. The SSRF vulnerability in ThingsBoard lets attackers upload SVG images that reference remote URLs. If processed by the server without proper checks, these images may initiate requests to internal services, thereby compromising security.
This vulnerability allows an attacker to upload an SVG file that could trigger unintended external requests. If the server processes this file improperly, it could expose sensitive internal services to the outside world—definitely not the kind of dinner party you want to host! To safeguard your systems, upgrade to ThingsBoard version 4.2.1 immediately. Additionally, consider implementing strict file validation on uploads to prevent malicious files from being processed. Regularly review your server's settings to ensure nothing is left vulnerable. You’ve got this! With these steps, you’ll be on your way to fortifying your defenses in no time! 🛡️
| Product | Versions | Fixed in |
|---|---|---|
| thingsboard/thingsboard | < 4.2.1 | 4.2.1 |