Reflected cross-site scripting in development mode handler in Vaadin
Priority LOW 38CWE-172Published · Updated
Key facts
- Attack vector
- —
- Privileges required
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- User interaction
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- Attack complexity
- —
- Impact type
- —
- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from GitHub.
Summary
URL encoding error in development mode handler in `com.vaadin:flow-server` versions 2.0.0 through 2.6.1 (Vaadin 14.0.0 through 14.6.1), 3.0.0 through 6.0.9 (Vaadin 15.0.0 through 19.0.8) allows local user to execute arbitrary JavaScript code by opening crafted URL in browser. - https://vaadin.com/security/cve-2021-33604
Why it matters now
Fix Fixed com.vaadin:flow-server (Maven): 2.6.2, 6.0.10
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 |
|---|---|---|---|---|---|
| — | com.vaadin:flow-server (Maven) | 2.0.0 to before 2.6.2 | 2.6.2 | Patch available | GHSA-8vfw-v2jv-9hwc |
| — | com.vaadin:flow-server (Maven) | 3.0.0 to before 6.0.10 | 6.0.10 | Patch available | GHSA-8vfw-v2jv-9hwc |
- com.vaadin:flow-server (Maven) Vendor— Affected 2.0.0 to before 2.6.2 Fixed in 2.6.2 Patch available GHSA-8vfw-v2jv-9hwc
- com.vaadin:flow-server (Maven) Vendor— Affected 3.0.0 to before 6.0.10 Fixed in 6.0.10 Patch available GHSA-8vfw-v2jv-9hwc
Remediation
- Fix · GHSA-8vfw-v2jv-9hwc com.vaadin:flow-server (Maven) Fixed in 2.6.2 Advisory →
- Fix · GHSA-8vfw-v2jv-9hwc com.vaadin:flow-server (Maven) Fixed in 6.0.10 Advisory →
Timeline
- 2026-10-03 Threatist record created from GHSA-8vfw-v2jv-9hwc
References
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences