@storybook/addon-essentials provides a curated set of add-ons designed to enhance the Storybook development experience. Comparing versions 5.3.2 and 5.3.3, the core functionality remains consistent, focusing on providing essential capabilities like viewport control, background customizations, and improved logging, all designed to streamline UI development and testing within Storybook. The dependency on ts-dedent remains at ^1.1.0, and both versions share the same peer dependencies for react, react-is, and babel-loader, ensuring compatibility with existing project setups. The devDependencies also stay the same, utilizing @types/jest version ^24.0.11 for a continued suite of Jest tests.
Essentially, the upgrade from 5.3.2 to 5.3.3 appears to be a minor release, potentially containing bug fixes or small improvements rather than significant feature additions. Developers upgrading should anticipate a smooth transition with minimal disruption to their existing Storybook configurations. The primary motivation for upgrading would likely be to benefit from the latest stability improvements and potential resolutions to reported issues. Notably, both versions have the same unpacked size and file count, suggesting that the structural organization of the package didn't change as well, indicating that the adjustments would be found directly in the code. The release date difference suggests a quick follow-up to the previous version.
All the vulnerabilities related to the version 5.3.3 of the package
Cross site scripting in markdown-to-jsx
Versions of the package markdown-to-jsx before 7.4.0 are vulnerable to Cross-site Scripting (XSS) via the src property due to improper input sanitization. An attacker can execute arbitrary code by injecting a malicious iframe element in the markdown.
ReDOS vulnerabities: multiple grammars
The Regular expression Denial of Service (ReDoS) is a Denial of Service attack, that exploits the fact that most Regular Expression implementations may reach extreme situations that cause them to work very slowly (exponentially related to input size). An attacker can then cause a program using a Regular Expression to enter these extreme situations and then hang for a very long time.
If are you are using Highlight.js to highlight user-provided data you are possibly vulnerable. On the client-side (in a browser or Electron environment) risks could include lengthy freezes or crashes... On the server-side infinite freezes could occur... effectively preventing users from accessing your app or service (ie, Denial of Service).
This is an issue with grammars shipped with the parser (and potentially 3rd party grammars also), not the parser itself. If you are using Highlight.js with any of the following grammars you are vulnerable. If you are using highlightAuto to detect the language (and have any of these grammars registered) you are vulnerable. Exponential grammars (C, Perl, JavaScript) are auto-registered when using the common grammar subset/library require('highlight.js/lib/common') as of 10.4.0 - see https://cdn.jsdelivr.net/gh/highlightjs/cdn-release@10.4.0/build/highlight.js
All versions prior to 10.4.1 are vulnerable, including version 9.18.5.
Grammars with exponential backtracking issues:
And of course any aliases of those languages have the same issue. ie: hpp is no safer than cpp.
Grammars with polynomial backtracking issues:
And again: any aliases of those languages have the same issue. ie: ruby and rb share the same ruby issues.
If you have any questions or comments about this advisory:
