@storybook/addon-essentials is a valuable package for enhancing Storybook development, bundling together curated addons designed to optimize the Storybook experience. Versions 5.3.11 and 5.3.12 share the same core functionality, providing developers with essential tools such as viewport control via @storybook/addon-viewport and background customization via @storybook/addon-backgrounds. Both rely on ts-dedent for cleaner template literals and integrate seamlessly with Storybook's API (@storybook/api) and addon system (@storybook/addons), ensuring consistent logging through @storybook/node-logger.
The key difference between the two versions lies in the internal package versioning of Storybook dependencies. Version 5.3.12 updates the internal dependencies @storybook/api, @storybook/addons, @storybook/node-logger, @storybook/addon-viewport, and @storybook/addon-backgrounds to their respective 5.3.12 versions, whereas 5.3.11 used the 5.3.11 versions. While the code of @storybook/addon-essentials package is exact the same between the 2 versions, upgrading from 5.3.11 to 5.3.12 ensures you're using the latest compatible versions of these core Storybook addons. Developers should upgrade to 5.3.12 primarily to benefit from any bug fixes, performance improvements, or feature enhancements included within those updated internal Storybook packages, guaranteeing a more stable and feature-rich Storybook environment. Both versions maintain peer dependencies on React, React-is, and babel-loader, ensuring compatibility with common project setups.
All the vulnerabilities related to the version 5.3.12 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:
