Co:WriterSecurity Analysis

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

Extension intercepts network traffic and sends data externally — potential man-in-the-middle behavior.

Extension has access to all sites and captures keyboard input — behavior consistent with a keylogger.

Uses eval() to execute dynamic code, a common technique for obfuscation and code injection.

Creates functions from strings, similar to eval(), often used to hide malicious code.

Dynamically creates script elements, potentially loading external malicious code.

Dynamically sets a script's src attribute to load external code at runtime.

Injects and executes scripts in web pages programmatically.

Listens for keyboard events, a common technique used by keyloggers.

Creates a function from a string (new Function()), similar to eval().

Uses eval() to execute dynamic code — a common vector for code injection.

XSS in jQuery.when with untrusted input

JavaScript files are accessible to ALL websites. Any page can load and interact with these scripts, enabling web→extension attacks.

Content script runs at document_start in ALL frames on ALL URLs. This gives the extension deep access to every page load, including iframes.

Extension tracks open tabs and communicates with external servers — potential browsing surveillance.

Uses XMLHttpRequest to make network calls.

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

Decodes base64 data, commonly used to hide malicious payloads.

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

Dynamically creates iframe elements, which can be used to load external content or hide malicious UI.

JavaScript file could not be parsed. May contain obfuscated or minified code.

Line exceeds 5000 characters (entropy: 5.429046010824853)

XSS via HTML passed to DOM manipulation methods

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

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

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

Creates a Web Worker, which runs code in a separate thread — can be used for background computation or crypto mining.

Reads or writes to localStorage, which may contain sensitive site data.

object-src is not set to 'none'. Plugins like Flash can be embedded, which may allow code execution.

ThirdParty/jquery/jquery-2.0.3.min.js

Background/cwe-background-bundle.js

background-service.js

jsdapi/jsdapi-bundle.js