CVE-2022-23647

Name: CVE-2022-23647
Creator: NVD / NIST
Published: 2022-02-18T15:15:07.74+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 1.46%

Last modified Jun 17, 2026

CVE-2022-23647 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. 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. EPSS estimates a 1.46% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

6.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

1.46%

70.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Prismjs	Prism	>= 1.14.0, < 1.27.0

References

https://github.com/PrismJS/prism/commit/e002e78c343154e1c0ddf9d6a0bb85689e1a5c7cPatch, Third Party Advisory
https://github.com/PrismJS/prism/pull/3341Patch, Third Party Advisory
https://github.com/PrismJS/prism/security/advisories/GHSA-3949-f494-cm99Third Party Advisory
https://github.com/PrismJS/prism/commit/e002e78c343154e1c0ddf9d6a0bb85689e1a5c7cPatch, Third Party Advisory
https://github.com/PrismJS/prism/pull/3341Patch, Third Party Advisory
https://github.com/PrismJS/prism/security/advisories/GHSA-3949-f494-cm99Third Party Advisory

Timeline

Published: Feb 18, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-23647?

How severe is CVE-2022-23647?

CVE-2022-23647 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 1.46% probability of exploitation in the next 30 days.

How do I fix CVE-2022-23647?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-23647?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST