Vulnerability · Published Feb 18, 2022 · Assigned by GitHub_M
CVE-2022-23647Cross-site Scripting in Prism
High 7.5
In plain English
A high-severity cross-site scripting in prism from PrismJS. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.4% (higher than 73% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | node-prismjs | 1.27.0+dfsg+~1.26.0-1 | DEBIAN-CVE-2022-23647 |
| Debian:13 | node-prismjs | 1.27.0+dfsg+~1.26.0-1 | DEBIAN-CVE-2022-23647 |
| Debian:14 | node-prismjs | 1.27.0+dfsg+~1.26.0-1 | DEBIAN-CVE-2022-23647 |
| Ubuntu:22.04:LTS | node-prismjs | no fix listed | UBUNTU-CVE-2022-23647 |
| npm | prismjs | 1.27.0 | GHSA-3949-f494-cm99 |
Affected products (as reported)
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:L
References
- https://github.com/PrismJS/prism/security/advisories/GHSA-3949-f494-cm99 x_refsource_CONFIRM
- https://github.com/PrismJS/prism/pull/3341 x_refsource_MISC
- https://github.com/PrismJS/prism/commit/e002e78c343154e1c0ddf9d6a0bb85689e1a5c7c x_refsource_MISC