CVE-2022-23647

Published: 18 February 2022

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.

Priority

Cvss 3 Severity Score

6.1

Score breakdown

Status

Package	Release	Status
node-prismjs Launchpad, Ubuntu, Debian	focal	Needs triage
	impish	Ignored (end of life)
	jammy	Needs triage
	kinetic	Ignored (end of life, was needs-triage)
	lunar	Not vulnerable (1.29.0+dfsg+~1.26.0-1)
	mantic	Not vulnerable (1.29.0+dfsg+~1.26.0-1)
	trusty	Ignored (end of standard support)
	upstream	Released (1.27.0+dfsg+~1.26.0-1)
	xenial	Ignored (end of standard support)

Severity score breakdown

Parameter	Value
Base score	6.1
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Changed
Confidentiality	Low
Integrity impact	Low
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References

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