# CVE-2022-23647: node-prismjs: Prism is a syntax highlighting library

CVE-2022-23647 is fixed in node-prismjs on 1 platform, first by DEBIAN-CVE-2022-23647, released February 18, 2022. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2022-23647
- Priority: Routine
- CVSS: 6.1 (medium)
- EPSS: 0.0143
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Feb 18, 2022

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | node-prismjs Debian 12.15 (bookworm) | 1.27.0+dfsg+~1.26.0-1 | [DEBIAN-CVE-2022-23647](https://patchblox.com/security/data/fix/linux/debian-cve-2022-23647.md) | Feb 18, 2022 |
| Linux | node-prismjs Debian 13.5 (trixie) | 1.27.0+dfsg+~1.26.0-1 | [DEBIAN-CVE-2022-23647](https://patchblox.com/security/data/fix/linux/debian-cve-2022-23647.md) | Feb 18, 2022 |
| Linux | node-prismjs Debian 14 | 1.27.0+dfsg+~1.26.0-1 | [DEBIAN-CVE-2022-23647](https://patchblox.com/security/data/fix/linux/debian-cve-2022-23647.md) | Feb 18, 2022 |

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