Analyzing the provided npm package data for css-what, version 1.0.0, we can infer its function is parsing CSS selectors. While we lack information about the previous stable version, we can still extract valuable insights for developers. Version 1.0.0 identifies itself as "a CSS selector parser," suggesting its core functionality revolves around dissecting and interpreting CSS selectors into a usable format. This is incredibly useful for tools that need to understand the structure of CSS, such as linters, optimizers, and document query engines. The absence of declared runtime dependencies in version 1.0.0 points to a lightweight design, minimizing the footprint of the library within a project. This is ideal for performance-sensitive applications. However, it's crucial for developers to conduct compatibility testing within their specific environments. The presence of jshint as a development dependency indicates a focus on code quality and adherence to coding standards during development. The "BSD-like" license offers considerable freedom to developers in terms of usage, modification, and distribution. The package's repository lives on Github under fb55/css-what so it is important to check the repo for more information. Lastly, being released on 2015-02-03, it might be considered an old version, so it is recommended to check the package for newer releases.
All the vulnerabilities related to the version 1.0.0 of the package
css-what vulnerable to ReDoS due to use of insecure regular expression
The package css-what before 2.1.3 is vulnerable to Regular Expression Denial of Service (ReDoS) due to the use of insecure regular expression in the re_attr variable of index.js. The exploitation of this vulnerability could be triggered via the parse function.
