CVE-2022-23647

HIGH

Prism 1.14.0-1.26.0 - Cross-Site Scripting via Command Line Plugin

Title source: llm
STIX 2.1

Description

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.

References (3)

Core 3
Core References
Patch, Third Party Advisory x_refsource_misc
https://github.com/PrismJS/prism/pull/3341

Scores

CVSS v3 7.5
EPSS 0.0035
EPSS Percentile 57.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-79
Status published
Products (2)
npm/prismjs 1.14.0 - 1.27.0npm
prismjs/prism 1.14.0 - 1.27.0
Published Feb 18, 2022
Tracked Since Feb 18, 2026