Vue 2.5.13 and 2.5.12 are both versions of the popular JavaScript framework used for building user interfaces. While the core functionality remains consistent, the primary difference lies in bug fixes and minor improvements implemented in the newer version, 2.5.13. Both versions share the same fundamental architecture, offering developers a reactive and component-oriented approach to web development. They both come equipped with a rich set of development dependencies, including tools for linting (eslint), bundling (rollup, webpack), testing (karma, jasmine, nightwatch) and others. The devDependencies highlight the commitment to code quality, testing, and efficient builds.
For developers, understanding which version to use often depends on project requirements and update cycles. If you are starting a new project, version 2.5.13 provides a slightly more stable base due to its incorporated fixes. When upgrading an existing Vue project, it's always advisable to review the changelog to understand the bug fixes to evaluate the impact on your application. Each version offers tools for JSX syntax support via Babel plugins, styling with Weex, and utilities like Lodash, showing the extensive eco-system supporting Vue development. These versions provide a solid foundation for building interactive and maintainable web applications.
All the vulnerabilities related to the version 2.5.13 of the package
ReDoS vulnerability in vue package that is exploitable through inefficient regex evaluation in the parseHTML function
The ReDoS can be exploited through the parseHTML function in the html-parser.ts file. This flaw allows attackers to slow down the application by providing specially crafted input that causes inefficient processing of regular expressions, leading to excessive resource consumption.
To demonstrate this vulnerability, here's an example. In a Vue client-side application, create a new Vue instance with a template string that includes a <script> tag but closes it incorrectly with something like </textarea>.
new Vue({
el: '#app',
template: '
<div>
Hello, world!
<script>${'<'.repeat(1000000)}</textarea>
</div>'
});
Next, set up a basic HTML page (e.g., index.html) to load this JavaScript and mount the Vue instance:
<!DOCTYPE html>
<html>
<head>
<title>My first Vue app</title>
</head>
<body>
<div id=\"app\">Loading...</div>
</body>
</html>
When you visit the app in your browser at http://localhost:3000, you'll notice that the time taken to parse and mount the Vue application increases significantly due to the ReDoS vulnerability, demonstrating how the flaw can affect performance.