Keywords Serp Clustering

The extension uses a method that could potentially execute malicious code if it displays untrusted content directly into the webpage without proper sanitization.

Technical: Code pattern: 'element.innerHTML = userInput'. This is flagged as a medium risk because if the extension were to fetch and render arbitrary HTML from an external source (like the SERP results) without stripping scripts, it could lead to Cross-Site Scripting (XSS). However, since the API returns structured data intended for display, this is often a false positive unless the developer concatenates user input directly into the DOM.

💡 Commonly used in legitimate extensions to dynamically update UI elements with fetched data. The risk is mitigated if the extension only renders sanitized text or uses specific rendering libraries that strip dangerous tags.

The security analysis detected code patterns associated with capturing keystrokes. This is a severe privacy risk as it could theoretically record everything you type in any website.

Technical: Code pattern: Event listeners attached to 'keydown', 'keypress', or 'input' events on the document body or specific forms, potentially forwarding data to an external endpoint. The network log does not show a dedicated keylogger server, but the presence of this code pattern is critical.

💡 Rarely used legitimately in productivity tools unless specifically designed for password managers (which use OS-level APIs) or accessibility tools. In a keyword clustering tool, capturing keystrokes on arbitrary sites provides no functional value and contradicts the principle of least privilege.

The extension monitors form inputs, which could mean it is reading data you type into search boxes or input fields on websites.

Technical: Code pattern: Event listeners attached to 'input' or 'change' events on form elements. This allows the extension to read the value of text fields before they are submitted.

💡 Used legitimately to auto-fill forms, detect search queries for clustering, or copy text from input boxes. However, combined with the keystroke finding, this increases the surface area for data leakage if the event handlers are not strictly scoped to the extension's own UI elements.

The code uses techniques to hide its logic, making it harder for users to inspect and verify what the extension is actually doing.

Technical: Code pattern: Use of 'charCodeAt' in loops or string manipulation that suggests dynamic code generation or obfuscation. This often accompanies malware or adware to evade static analysis tools.

💡 Sometimes used by developers to minify code, but aggressive obfuscation is a red flag for security analysts as it hinders transparency and debugging.

The extension does not enforce strict security rules on which scripts can run, leaving it more vulnerable to code injection attacks.

Technical: Manifest V3 extensions should ideally define a CSP in the manifest.json. The absence of this header means the browser applies default permissive policies, allowing any script loaded by the extension to execute.

💡 Many simple extensions omit this for simplicity, but it is a best practice for security-hardened applications.