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.
Metrics
Affected Vendors & Products
References
History
Wed, 03 Dec 2025 14:00:00 +0000
| Type | Values Removed | Values Added |
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| CPEs | cpe:2.3:a:thingsboard:thingsboard:*:*:*:*:*:*:*:* | |
| Metrics |
cvssV3_1
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Fri, 28 Nov 2025 15:15:00 +0000
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| Metrics |
ssvc
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Fri, 28 Nov 2025 09:00:00 +0000
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| First Time appeared |
Thingsboard
Thingsboard thingsboard |
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| Vendors & Products |
Thingsboard
Thingsboard thingsboard |
Thu, 27 Nov 2025 18:15:00 +0000
| Type | Values Removed | Values Added |
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| 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. | |
| Title | Stored Cross-Site Scripting (XSS) in ThingsBoard | |
| Weaknesses | CWE-79 | |
| References |
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| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: Checkmarx
Published: 2025-11-27T18:11:32.357Z
Updated: 2025-11-28T14:59:12.401Z
Reserved: 2025-04-04T12:27:32.830Z
Link: CVE-2025-3261
Updated: 2025-11-28T14:58:59.591Z
Status : Analyzed
Published: 2025-11-27T18:15:46.403
Modified: 2025-12-03T13:53:30.100
Link: CVE-2025-3261
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