Reflected cross-site scripting in default RouteNotFoundError view in Vaadin 10 and 11-13
Priority LOW 28CWE-81Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-79.
Summary
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
Why it matters now
EPSS 0.00668 52nd percentileScored 2026-11-07
Fix Fixed com.vaadin:flow-server (Maven): 1.0.11, 1.4.3
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Vaadin | Vaadin | 10.0.0 and later | — | No fix listed | CNA |
| Vaadin | flow-server | 1.0.0 and later | — | No fix listed | CNA |
| — | com.vaadin:flow-server (Maven) | 1.0.0 to before 1.0.11 | 1.0.11 | Patch available | GHSA-rp4x-wxqv-cf9m |
| — | com.vaadin:flow-server (Maven) | 1.1.0 to before 1.4.3 | 1.4.3 | Patch available | GHSA-rp4x-wxqv-cf9m |
- Vaadin VendorVaadin Affected 10.0.0 and later Fixed in — No fix listed CNA
- flow-server VendorVaadin Affected 1.0.0 and later Fixed in — No fix listed CNA
- com.vaadin:flow-server (Maven) Vendor— Affected 1.0.0 to before 1.0.11 Fixed in 1.0.11 Patch available GHSA-rp4x-wxqv-cf9m
- com.vaadin:flow-server (Maven) Vendor— Affected 1.1.0 to before 1.4.3 Fixed in 1.4.3 Patch available GHSA-rp4x-wxqv-cf9m
Remediation
- Fix · GHSA-rp4x-wxqv-cf9m com.vaadin:flow-server (Maven) Fixed in 1.0.11 Advisory →
- Fix · GHSA-rp4x-wxqv-cf9m com.vaadin:flow-server (Maven) Fixed in 1.4.3 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2019-25027
- 2026-10-03 Alias added: GHSA-rp4x-wxqv-cf9m
References
More Vaadin Flow vulnerabilities
- TI-2021-11539 Server classes and resources exposure in OSGi applications using Vaadin 12-14 and 19 CVSS 3.1HIGH 8.6
- TI-2021-11537 Regular expression denial of service (ReDoS) in EmailField component in Vaadin 14 and 15-17 CVSS 3.1HIGH 7.5
- TI-2020-18604 Directory traversal in development mode handler in Vaadin 14 and 15-17 CVSS 3.1HIGH 7.5
- TI-2021-11543 Insecure temporary directory usage in frontend build functionality of Vaadin 14 and 15-19 CVSS 3.1HIGH 7.8
- TI-2021-11540 Server session is not invalidated when logout() helper method of Authentication module is used in Vaadin 18-19 CVSS 3.1HIGH 7.1
- TI-2020-18602 Potential sensitive data exposure in applications using Vaadin 15 CVSS 3.1MEDIUM 6.5
Sources
- CVE-2019-25027 · CVE Program
- CVE-2019-25027 · NVD
- FIRST EPSS
- GHSA-rp4x-wxqv-cf9m · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences