W-RECON-SOURCEMAPReconnaissance

JavaScript Source Map Exposure

Publicly served .js.map files reveal the un-minified source, comments, often internal API URLs and feature flags.

§ Where this technique fits

W-RECON-SOURCEMAP is catalogued under the Reconnaissance tactic of the offensive-security kill-chain. It appears in 1 approved dossier in the registry, typically at step 2 on average.

§ Dossiers chaining this technique

Source map exposure → API key leak → cloud takeover
Public *.js.map files reveal un-minified source and inline-committed API keys (cloud provider, third-party services). Use the keys directly.
step 2 / 6

§ What commonly comes next

01
Hardcoded Secrets in JS Bundles
W-RECON-JS-SECRETS · Reconnaissance
seen 1×

§ Where this technique fits

§ Dossiers chaining this technique

Source map exposure → API key leak → cloud takeover

§ What commonly comes next