Mobility Print

What This Extension Does

Permissions Explained

• background: Allows the extension to run in the background, which is standard for extensions that need to perform tasks without user interaction.
• identity: Grants access to the user's identity information, which could be unusual for a productivity-focused extension. This might indicate that the extension needs to authenticate with external services or interact with user data in some way.
• mdns: Enables the extension to use Multicast DNS (mDNS) protocol, which is used for local network discovery and communication. This is not typically associated with printing functionality but could be necessary if the extension integrates with printers on a local network.
• printerProvider: A standard permission for extensions that manage printer settings or provide print-related services.
• storage: Allows the extension to store data locally, which is common for extensions needing to remember user preferences or cache data temporarily.
• system.display: Grants access to display information and could be used for customizing the extension's UI based on screen resolution or other display settings. This seems somewhat unrelated to printing but might be necessary for a productivity-focused extension with a complex UI.
• system.network: Enables the extension to interact with network resources, which is standard for extensions that need to communicate with external services or APIs.
• offscreen: Allows the extension to create off-screen windows and could be used for background tasks or notifications. This seems somewhat unrelated to printing but might be necessary for a productivity-focused extension needing to display information without taking up screen space.
• enterprise.deviceAttributes: A permission that allows access to device attributes, which is unusual for a consumer-facing productivity extension like Mobility Print. This might indicate integration with enterprise-specific features or services not typically associated with this type of extension.
• http://*/*, https://*/*: These are critical permissions because they grant the extension access to all HTTP and HTTPS requests made by the user. While some extensions need this for legitimate purposes (e.g., proxying requests), it's a broad permission that could be used for malicious activities if misused.
• storage: Allows the extension to store data locally, which is common for extensions needing to remember user preferences or cache data temporarily.

What We Found in the Code

• [high] Function constructor used — dynamic code execution: This flag indicates the use of function constructors (e.g., eval) within the extension's code. While this can be a legitimate pattern for certain types of development, it also poses a risk if not managed properly, as it allows for dynamic code execution that could potentially bypass security measures.
• [medium] innerHTML assignment — potential XSS vector: The use of innerHTML assignments is flagged here. This is a common coding pattern used for dynamically updating UI elements but can be problematic if untrusted data is inserted into the HTML string, as it could lead to cross-site scripting (XSS) vulnerabilities.
• [info] Makes HTTP requests: Making HTTP requests is a normal part of web development and is not inherently concerning. However, given the critical permissions for accessing all HTTP and HTTPS requests, it's worth noting that this extension does make external calls.

External Connections

• tc39.es, github.com, www.w3.org, jqueryvalidation.org, bugs.chromium.org, html.spec.whatwg.org, promisesaplus.com, drafts.csswg.org, bugs.webkit.org: These are all standard web development resources and do not seem unusual for an extension that might need to integrate with various APIs or standards.
• kjur.github.io, bugzilla.mozilla.org, tools.ietf.org: These domains also appear related to web development, API integration, or bug tracking, which could be necessary for the extension's functionality.

Things to Consider