CVE-2020-28481
Published:January 19, 2021
Updated:April 17, 2026
The package socket.io before 2.4.0 are vulnerable to Insecure Defaults due to CORS Misconfiguration. All domains are whitelisted by default.
Affected Packages
socket.io (CDN_JS):
Affected version(s) >=0.6.2 <2.4.0Fix Suggestion:
Update to version 2.4.0socket.io (NPM):
Affected version(s) >=0.3.8 <2.4.0Fix Suggestion:
Update to version 2.4.0Related Resources (3)
Do you need more information?
Contact UsCVSS v4
Base Score:
5.5
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
Exploit Maturity
POC
CVSS v3
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Exploit Maturity
PROOF-OF-CONCEPT
CVSS v2
Base Score:
4
Access Vector
NETWORK
Access Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
EPSS
Base Score:
0.19
