Reflected cross-site scripting in default RouteNotFoundError view in Vaadin 10 and 11-13
Missing output sanitization in default RouteNotFoundError view in com.vaadin:flow-server versions 1.0.0 through 1.0.10 (Vaadin 10.0.0 through 10.0.13), and 1.1.0 through 1.4.2 (Vaadin 11.0.0 through 13.0.5) allows attacker to execute malicious JavaScript via crafted URL.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | com.vaadin:vaadin-bom | >= 10.0.0, < 10.0.14, >= 11.0.0, < 13.0.6 | 10.0.14, 13.0.6 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N- Weakness (CWE)
CWE-81- Platform
- Java / Kotlin (Maven)
- Package
com.vaadin:vaadin-bom- Disclosed
- 19.04.2021
- Updated
- 11.10.2026 12:21
Sources and licenses
OSV / GitHub Advisory Database - GHSA-jqj4-r483-4gvr - CC BY 4.0
Vulnerability history: com.vaadin:vaadin-bom
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
- 18
- First → latest
- 04.2021 11.2021
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 5
- Medium 10
- Low 3
Disclosures per year
- 2021: 18
- 2022: 0
- 2023: 0
- 2024: 0
- 2025: 0
- 2026: 0
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