CORS misconfiguration in socket.io
The package socket.io before 2.4.0 are vulnerable to Insecure Defaults due to CORS Misconfiguration. All domains are whitelisted by default.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | socket.io | < 2.4.0 | 2.4.0 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2020-28481
- https://github.com/socketio/socket.io/issues/3671
- https://github.com/socketio/socket.io/commit/f78a575f66ab693c3ea96ea88429ddb1a44c86c7
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-1056358
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1056357
- https://snyk.io/vuln/SNYK-JS-SOCKETIO-1024859
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N- Weakness (CWE)
CWE-346, CWE-453- Platform
- npm
- Package
socket.io- Disclosed
- 20.01.2021
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-fxwf-4rqh-v8g3 - CC BY 4.0
Vulnerability history: socket.io
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 3
- First → latest
- 11.2018 06.2024
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 1
- Medium 2
Disclosures per year
- 2018: 1
- 2019: 0
- 2020: 0
- 2021: 1
- 2022: 0
- 2023: 0
- 2024: 1
- 2025: 0
- 2026: 0
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CORS misconfiguration in socket.io this entry
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