CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NCVE-2020-36321
High (7.5) in vaadin. EPSS 1.2% chance of exploitation in the next 30 days. Fixed in com.vaadin:flow-server 2.4.2, 5.0.0.
Improper URL validation in development mode handler in com.vaadin:flow-server versions 2.0.0 through 2.4.1 (Vaadin 14.0.0 through 14.4.2), and 3.0 prior to 5.0 (Vaadin 15 prior to 18) allows attacker to request arbitrary files stored outside of intended frontend resources folder.
Severity
- EPSS
- 1.2% chance of exploitation in the next 30 days; higher than 68% of CVEs (scores of 2026-10-31)
- CWE
- CWE-22
- Published
- Modified
- Record from
- the NVD, synced
Affected
- vaadin:flow
- vaadin:vaadin
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-49r2-73m6-pp8f | Maven | com.vaadin:flow-server | >=3.0.0 <5.0.0 | 5.0.0 |
| GHSA-49r2-73m6-pp8f | Maven | com.vaadin:flow-server | >=2.0.0 <2.4.2 | 2.4.2 |