ClassLink OneClick ExtensionSecurity Analysis

Default key derivation uses single MD5 iteration, making encrypted data easily brutable

Dynamically creates script elements, potentially loading external malicious code.

Injects and executes scripts in web pages programmatically.

Decodes base64 data, commonly used to hide malicious payloads.

Sends messages via Chrome runtime, could communicate with external services.

Modifies window.location to redirect the user, potentially to phishing or malicious pages.

Line exceeds 5000 characters (entropy: 5.245390075434089)

This extension does not define a Content Security Policy. A CSP helps prevent XSS and code injection attacks.

Web-accessible resources use <all_urls> or wildcard patterns, exposing resources to every website.

Content script matches <all_urls>, executing on every website the user visits.

Extension uses tab tracking APIs (onUpdated/query) and communicates with external servers — potential browsing surveillance.

Encodes data to base64, may be used for data exfiltration.

Sets innerHTML directly, which can lead to XSS if used with untrusted data.

crypto_aes.js

injected.js