Svelte version 1.41.1 represents a minor update to the 1.41.0 release, part of the early development phase of this "magical disappearing UI framework." Both versions share the same core description, highlighting Svelte's innovative approach to web development. A key takeaway is the focus on shifting work from the browser to the compile step, resulting in highly performant and efficient applications.
Examining the included devDependencies reveals the toolchain utilized in Svelte's development. This robust setup allows for comprehensive testing, linting, and building of the framework. Tools like rollup are central for bundling, while eslint and prettier enforce code quality and consistency. Testing is clearly prioritized with mocha, jsdom, and nightmare facilitating unit and end-to-end tests.
The primary observable difference between the two versions lies in their releaseDate. Version 1.41.1 was released on October 20, 2017, just three days after version 1.41.0 (October 17, 2017). This suggests that version 1.41.1 likely includes bug fixes or very minor enhancements over its predecessor.
For developers considering Svelte, the shared dependencies point to the framework's commitment to modern JavaScript standards and best practices. The detailed dependency specifications further shows the focus on stability and controlled updates of the toolchain used in that moment by the team. While this specific update is minor, it reflects the ongoing development and refinement of Svelte as a promising alternative in the UI framework landscape.
All the vulnerabilities related to the version 1.41.1 of the package
Svelte vulnerable to XSS when using objects during server-side rendering
The package svelte before 3.49.0 is vulnerable to Cross-site Scripting (XSS) due to improper input sanitization and to improper escape of attributes when using objects during SSR (Server-Side Rendering). Exploiting this vulnerability is possible via objects with a custom toString() function.
Svelte has a potential mXSS vulnerability due to improper HTML escaping
A potential XSS vulnerability exists in Svelte for versions prior to 4.2.19.
Svelte improperly escapes HTML on server-side rendering. It converts strings according to the following rules:
" -> "& -> &< -> <& -> &The assumption is that attributes will always stay as such, but in some situation the final DOM tree rendered on browsers is different from what Svelte expects on server-side rendering. This may be leveraged to perform XSS attacks. More specifically, this can occur when injecting malicious content into an attribute within a <noscript> tag.
A vulnerable page (+page.svelte):
<script>
import { page } from "$app/stores"
// user input
let href = $page.url.searchParams.get("href") ?? "https://example.com";
</script>
<noscript>
<a href={href}>test</a>
</noscript>
If a user accesses the following URL,
http://localhost:4173/?href=</noscript><script>alert(123)</script>
then, alert(123) will be executed.
XSS, when using an attribute within a noscript tag