1. Home
  2. CVE Database
  3. CVE-2020-36321
MEDIUM · 5.9

CVE-2020-36321

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 ...

Vulnerability Description

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.

CVSS Score

5.9

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE

Affected Products

VendorProductVersions
VaadinFlow>= 2.0.0, < 2.4.2
VaadinVaadin>= 14.0.0, < 14.4.3

Related Weaknesses (CWE)

CWE-22

References

FAQ

What is CVE-2020-36321?

CVE-2020-36321 is a vulnerability with a CVSS score of 5.9 (MEDIUM). 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 ...

How severe is CVE-2020-36321?

CVE-2020-36321 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-36321?

Check the references section above for vendor advisories and patch information. Affected products include: Vaadin Flow, Vaadin Vaadin.