Svelte version 1.41.3 is a minor patch release following 1.41.2 in the Svelte UI framework, focusing primarily on bug fixes and internal improvements rather than introducing major new features. Developers upgrading from 1.41.2 should anticipate a smoother and more stable experience rather than a significantly altered API. The core functionality and developer workflow remain consistent between the two versions, ensuring a seamless transition.
While detailed changelogs for such minor releases are often less verbose, the key takeaway for developers is enhanced reliability. This increment likely addresses edge cases or minor inconsistencies discovered in 1.41.2, contributing to a more polished development experience. Examining the Svelte repository's commit history around the release dates would reveal the specific bug fixes included.
Both versions share the same core dependencies and devDependencies, highlighting the stability of the tooling and underlying ecosystem. The consistency in tooling, including rollup, typescript, and eslint, confirms that the upgrade won't necessitate major adjustments to existing build processes or linting configurations. This emphasis on stability makes Svelte an attractive choice for developers seeking a framework that minimizes disruption while delivering performance and maintainability. The MIT license continues to apply, ensuring flexibility for both open-source and commercial projects.
All the vulnerabilities related to the version 1.41.3 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