Prism is a syntax highlighting library. Starting with version 1.14.0 and prior to version 1.27.0, Prism's command line plugin can be used by attackers to achieve a cross-site scripting attack. The command line plugin did not properly escape its output, leading to the input text being inserted into the DOM as HTML code. Server-side usage of Prism is not impacted. Websites that do not use the Command Line plugin are also not impacted. This bug has been fixed in v1.27.0. As a workaround, do not use the command line plugin on untrusted inputs, or sanitize all code blocks (remove all HTML code text) from all code blocks that use the command line plugin.
CVE-2022-23647 - High Severity Vulnerability
Lightweight, robust, elegant syntax highlighting. A spin-off project from Dabblet.
Library home page: https://registry.npmjs.org/prismjs/-/prismjs-1.25.0.tgz
Path to dependency file: /package.json
Path to vulnerable library: /node_modules/prismjs/package.json
Dependency Hierarchy: - vuepress-1.8.2.tgz (Root Library) - core-1.8.2.tgz - markdown-1.8.2.tgz - :x: **prismjs-1.25.0.tgz** (Vulnerable Library)
Found in HEAD commit: 78776de9cc77d23eaeff13ab901de4a59cee0dec
Found in base branch: main
Prism is a syntax highlighting library. Starting with version 1.14.0 and prior to version 1.27.0, Prism's command line plugin can be used by attackers to achieve a cross-site scripting attack. The command line plugin did not properly escape its output, leading to the input text being inserted into the DOM as HTML code. Server-side usage of Prism is not impacted. Websites that do not use the Command Line plugin are also not impacted. This bug has been fixed in v1.27.0. As a workaround, do not use the command line plugin on untrusted inputs, or sanitize all code blocks (remove all HTML code text) from all code blocks that use the command line plugin.
Publish Date: 2022-02-18
URL: CVE-2022-23647
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: High - Privileges Required: None - User Interaction: Required - Scope: Changed - Impact Metrics: - Confidentiality Impact: High - Integrity Impact: Low - Availability Impact: Low
For more information on CVSS3 Scores, click here.Type: Upgrade version
Origin: https://github.com/PrismJS/prism/security/advisories/GHSA-3949-f494-cm99
Release Date: 2022-02-18
Fix Resolution (prismjs): 1.27.0
Direct dependency fix Resolution (vuepress): 1.8.3
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