// For flags

CVE-2020-36320

Regular expression Denial of Service (ReDoS) in EmailValidator class in Vaadin 7

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Unsafe validation RegEx in EmailValidator class in com.vaadin:vaadin-server versions 7.0.0 through 7.7.21 (Vaadin 7.0.0 through 7.7.21) allows attackers to cause uncontrolled resource consumption by submitting malicious email addresses.

Una comprobación no segura de RegEx en la clase EmailValidator en com.vaadin: vaadin-server versiones 7.0.0 hasta 7.7.21 (Vaadin versiones 7.0.0 hasta 7.7.21) permite a atacantes causar un consumo de recursos no controlado al enviar direcciones de correo electrónico maliciosas

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-04-13 CVE Reserved
  • 2021-04-23 CVE Published
  • 2024-09-16 CVE Updated
  • 2024-09-16 First Exploit
  • 2024-09-17 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-400: Uncontrolled Resource Consumption
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Vaadin
Search vendor "Vaadin"
 Vaadin
Search vendor "Vaadin" for product "Vaadin"
 >= 7.0.0 < 7.7.22
Search vendor "Vaadin" for product "Vaadin" and version " >= 7.0.0 < 7.7.22"
-
Affected