ThingsBoard vulnerable to stored cross-site scripting (XSS) vulnerability in the dashboard's Image Upload Gallery feature
ThingsBoard versions < 4.2.1 contain a stored cross-site scripting (XSS) vulnerability in the dashboard's Image Upload Gallery feature. An attacker can upload an SVG file containing malicious JavaScript, which may be executed when the file is rendered in the UI. This issue results from insufficient sanitization and improper content-type validation of uploaded SVG files.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | org.thingsboard:application | < 4.2.1 | 4.2.1 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2025-34281
- https://github.com/thingsboard/thingsboard/pull/13927
- https://github.com/thingsboard/thingsboard/commit/b2ae6f92d12206ea185a2e882945a6b69234bf03
- https://advisory.checkmarx.net/advisory/CVE-2025-3261
- https://advisory.checkmarx.net/advisory/CVE-2025-34281
- https://github.com/thingsboard/thingsboard
- https://github.com/thingsboard/thingsboard/releases/tag/v4.2.1
- https://www.vulncheck.com/advisories/thingsboard-svg-image-stored-xss
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N- Weakness (CWE)
CWE-79- Platform
- Java / Kotlin (Maven)
- Package
org.thingsboard:application- Disclosed
- 17.10.2025
- Updated
- 11.10.2026 12:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-fpq4-r87v-g246 - CC BY 4.0
Vulnerability history: org.thingsboard:application
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 2
- First → latest
- 10.2025 11.2025
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Medium 2
Disclosures per year
- 2025: 2
- 2026: 0
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ThingsBoard vulnerable to stored cross-site scripting (XSS) vulnerability in the dashboard's Image Upload Gallery feature this entry
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