GitHub Advisoryadvisory · npm

GHSA-3949-f494-cm99 Cross-site Scripting in Prism

HIGH Published 2022-02-22 Modified 2022-02-22 Official page ↗
Aliases
CVE-2022-23647
Ecosystem
npm
Packages
prismjs
Severity
High
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:L
Weaknesses
CWE-79
Reviewed
2022-02-22

Affected packages

• npm prismjs: >= 1.14.0, < 1.27.0 → fixed in 1.27.0

Description

Impact Prism's Command line plugin can be used by attackers to achieve an XSS 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. Patches This bug has been fixed in v1.27.0. Workarounds Do not use the Command line plugin on untrusted inputs, or sanitized all code blocks (remove all HTML code text) from all code blocks that use the Command line plugin. References • https://github.com/PrismJS/prism/pull/3341

Related

Alias · CVE (1)

  • CVE-2022-23647 Prism is a syntax highlighting library. vulnerability

Weakness · CWE (1)

  • CWE-79 Improper Neutralization of Input During Web Page Generation weakness

References