Vulnerability Description
ThingsBoard in versions prior to v4.2.1 allows an authenticated user to upload malicious SVG images via the "Image Gallery", leading to a Stored Cross-Site Scripting (XSS) vulnerability. The exploit can be triggered when any user accesses the public API endpoint of the malicious SVG images, or if the malicious images are embedded in an `iframe` element, during a widget creation, deployed to any page of the platform (e.g., dashboards), and accessed during normal operations. The vulnerability resides in the `ImageController`, which fails to restrict the execution of JavaScript code when an image is loaded by the user's browser. This vulnerability can lead to the execution of malicious code in the context of other users' sessions, potentially compromising their accounts and allowing unauthorized actions.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Thingsboard | Thingsboard | < 4.2.1 |
Related Weaknesses (CWE)
References
- https://advisory.checkmarx.net/advisory/CVE-2025-34281/
- https://github.com/thingsboard/thingsboard/commit/b2ae6f92d12206ea185a2e882945a6
- https://github.com/thingsboard/thingsboard/releases/tag/v4.2.1Release Notes
FAQ
What is CVE-2025-34281?
CVE-2025-34281 is a vulnerability with a CVSS score of 5.4 (MEDIUM). ThingsBoard in versions prior to v4.2.1 allows an authenticated user to upload malicious SVG images via the "Image Gallery", leading to a Stored Cross-Site Scripting (XSS) vulnerability. The exploit c...
How severe is CVE-2025-34281?
CVE-2025-34281 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-34281?
Check the references section above for vendor advisories and patch information. Affected products include: Thingsboard Thingsboard.