CVE-2020-28481

Insecure Defaults

MEDIUM
4.3
CVSS Score
Published: January 19, 2021 at 02:45 PM UTC
Updated: June 17, 2026 at 03:10 AM UTC
1 product affected across 1 vendorSocket.io

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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.7%

Description

The package socket.io before 2.4.0 are vulnerable to Insecure Defaults due to CORS Misconfiguration. All domains are whitelisted by default.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 2.4.0
Affected range stops below 2.4.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (4)

x_refsource_MISCExploitThird Party Advisory
https://github.com/socketio/socket.io/issues/3671
x_refsource_MISCThird Party Advisory
https://snyk.io/vuln/SNYK-JS-SOCKETIO-1024859

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-346

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