Emerald Red Team

ERT-SUPPLY-007

Third-party scripts without integrity

LowA03:2025CWE-353

Why it matters

If the CDN serving this script is compromised, the attacker runs code on your site.

How to fix it

Self-host the script or add an integrity= hash and crossorigin attribute.

How we test it

Passive — runs in the free check, looks only at what a browser can see.

Does your app have this problem?

The free Quick Check tests for it.

Scan my app — free