CVE-2022-23647

Cross-site Scripting in Prism

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.07%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com
Affected: PrismJS prism
Published at:
Updated at:

References

Link Tags
https://github.com/PrismJS/prism/security/advisories/GHSA-3949-f494-cm99 third party advisory
https://github.com/PrismJS/prism/pull/3341 third party advisory patch
https://github.com/PrismJS/prism/commit/e002e78c343154e1c0ddf9d6a0bb85689e1a5c7c third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2022-23647?
CVE-2022-23647 has been scored as a high severity vulnerability.
How to fix CVE-2022-23647?
To fix CVE-2022-23647, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-23647 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-23647 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-23647?
CVE-2022-23647 affects PrismJS prism.
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