@storybook/addon-essentials versions 5.3.15 and 5.3.14 provide a curated set of Storybook addons designed to enhance the development and presentation of your UI components. Both versions share the same core purpose: to bring out the best in Storybook by offering essential functionalities like viewport control, background customization, and logging. They also have identical development dependencies, relying on @types/jest for testing. Both versions also declare react, react-is and babel-loader as peer dependencies, meaning that they rely on the project to have it installed.
The key difference lies in the internal dependencies and release date. Version 5.3.15 updates its internal Storybook dependencies – @storybook/api, @storybook/addons, @storybook/node-logger, @storybook/addon-viewport, and @storybook/addon-backgrounds – to version 5.3.15. In contrast, version 5.3.14 uses version 5.3.14 of these same dependencies. This suggests that version 5.3.15 incorporates bug fixes, minor improvements, or features within these core Storybook modules. This new version was also released on March 14, 2020, whereas its predecessor on Feb 25, 2020.
For developers, upgrading to version 5.3.15 is recommended to benefit from the latest enhancements and fixes within the Storybook ecosystem. While the API and core functionality remain largely consistent, these internal updates contribute to a more stable and refined Storybook experience overall. Considering that the file count and unpacked size are identical between the two, the upgrade should be straightforward.
All the vulnerabilities related to the version 5.3.15 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:
