Possibility to bypass file upload validation on the server-side
Summary
| CVE | CVE-2025-9467 |
|---|---|
| State | PUBLISHED |
| Assigner | Vaadin |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2025-09-04 10:42:34 UTC |
| Updated | 2026-09-14 14:17:07 UTC |
| Description | When the Vaadin Upload's start listener is used to validate metadata about an incoming upload, it is possible to bypass the upload validation. Users of affected versions should apply the following mitigation or upgrade. Releases that have fixed this issue include: Product version Vaadin 7.0.0 - 7.7.47 Vaadin 8.0.0 - 8.28.1 Vaadin 14.0.0 - 14.13.0 Vaadin 23.0.0 - 23.6.1 Vaadin 24.0.0 - 24.7.6 Mitigation Upgrade to 7.7.48 Upgrade to 8.28.2 Upgrade to 14.13.1 Upgrade to 23.6.2 Upgrade to 24.7.7 or newer Please note that Vaadin versions 10-13 and 15-22 are no longer supported and you should update either to the latest 14, 23, 24 version. Artifacts Maven coordinatesVulnerable versionsFixed versioncom.vaadin:vaadin-server 7.0.0 - 7.7.47 ≥7.7.48 com.vaadin:vaadin-server 8.0.0 - 8.28.1 ≥8.28.2 com.vaadin:vaadin 14.0.0 - 14.13.0 ≥14.13.1 com.vaadin:vaadin23.0.0 - 23.6.1 ≥23.6.2 com.vaadin:vaadin24.0.0 - 24.7.6 ≥24.7.7com.vaadin:vaadin-upload-flow 2.0.0 - 14.13.0 ≥14.13.1 com.vaadin:vaadin-upload-flow 23.0.0 - 23.6.1 ≥23.6.2 com.vaadin:vaadin-upload-flow 24.0.0 - 24.7.6 ≥24.7.7 |
Risk And Classification
Primary CVSS: v4.0 5.3 MEDIUM from [email protected]
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:N/R:U/V:D/RE:L/U:Green
EPSS: 0.003840000 probability, percentile 0.318820000 (date 2026-09-14)
Problem Types: CWE-20 | CWE-20 CWE-20 Improper Input Validation
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | [email protected] | Secondary | 5.3 | MEDIUM | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/C... |
| 4.0 | CNA | CVSS | 5.3 | MEDIUM | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/S:N/A... |
CVSS v4.0 Breakdown
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:N/R:U/V:D/RE:L/U:Green
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Vaadin | Vaadin | affected 14.0.0 14.13.0 maven | Not specified |
| CNA | Vaadin | Vaadin | affected 23.0.0 23.6.1 maven | Not specified |
| CNA | Vaadin | Vaadin | affected 24.0.0 24.7.6 maven | Not specified |
| CNA | Vaadin | Framework | affected 7.0.0 7.7.47 maven | Not specified |
| CNA | Vaadin | Framework | affected 8.0.0 8.28.1 maven | Not specified |
| CNA | Vaadin | Vaadin-upload-flow | affected 2.0.0 14.13.0 maven | Not specified |
| CNA | Vaadin | Vaadin-upload-flow | affected 23.0.0 23.6.1 maven | Not specified |
| CNA | Vaadin | Vaadin-upload-flow | affected 24.0.0 24.7.6 maven | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| vaadin.com/security/cve-2025-9467 | [email protected] | vaadin.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Additional Advisory Data
Solutions
CNA: Users of affected versions should apply the following mitigation or upgrade.
Workarounds
CNA: This issue can also be worked around without updating the version by validating the upload metadata again in the Upload's finished listener.