Medium severityJavaScript / TypeScriptInsecure ConfigurationMEDIUM confidence
CORS Wildcard Origin
CORS is configured to allow any origin, which lets any site issue cross-origin requests to this API.
Standards mapping
- OWASP Top 10
- A05:2021 - Security Misconfiguration
- OWASP ASVS
- V14.5.3 (L1)
Vulnerable vs. safe
Flagged by this check
app.use(cors({ origin: "*" }));Passes - the safe pattern
app.use(cors({ origin: "https://trusted.example.com" }));Why it matters & how to fix it
CORS is configured to allow any origin, which lets any site issue cross-origin requests to this API. Reflect only an explicit allowlist of trusted origins instead of "*" or true.
References
Rule ID integsec-js-cors-wildcard-origin - engine: Opengrep - license: MIT - Copyright (c) IntegSec Inc.
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