Socket.IO 4.7.3 represents a minor update over version 4.7.2, focusing primarily on internal improvements and bug fixes rather than introducing substantial new features. Examining the provided data, the core dependencies remain consistent across both versions, including crucial components like engine.io, socket.io-parser, and socket.io-adapter, indicating no fundamental alterations to the underlying communication protocols or core functionalities.
The most notable change appears to be the updated release date, signifying that version 4.7.3 incorporates recent enhancements and potentially addresses issues identified in the earlier 4.7.2 release. Developers should check the changelog for details. In terms of development dependencies, the versions largely mirror each other. It's worth noting the usage of testing frameworks like Mocha, Expect.js, Supertest, and Superagent, which emphasizes the quality of code. The inclusion of TypeScript as a development dependency suggests the library is written in or at least tested against TypeScript, of great interest to Typescript developers. The bumped version of tsd from 0.21.0 to 0.27.0, usually associated with Typescript definition management, further indicates continuous improvements in providing a smoother experience for Typescript users. Though largely the same, the "unpacked size" indicates a minute difference between the versions, so developers should check the updates for any possible errors.
All the vulnerabilities related to the version 4.7.3 of the package
cookie accepts cookie name, path, and domain with out of bounds characters
The cookie name could be used to set other fields of the cookie, resulting in an unexpected cookie value. For example, serialize("userName=<script>alert('XSS3')</script>; Max-Age=2592000; a", value) would result in "userName=<script>alert('XSS3')</script>; Max-Age=2592000; a=test", setting userName cookie to <script> and ignoring value.
A similar escape can be used for path and domain, which could be abused to alter other fields of the cookie.
Upgrade to 0.7.0, which updates the validation for name, path, and domain.
Avoid passing untrusted or arbitrary values for these fields, ensure they are set by the application instead of user input.
