What is GHSA-wvhm-4hhf-97x9?

GHSA-wvhm-4hhf-97x9 is a security advisory published by GitHub Security Advisories with High severity. Cross-Site Scripting in Prism

Which CVE IDs does GHSA-wvhm-4hhf-97x9 cover?

GHSA-wvhm-4hhf-97x9 covers the following CVE IDs: CVE-2020-15138. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-wvhm-4hhf-97x9?

GHSA-wvhm-4hhf-97x9 has a CVSS v3 base score of 7.1, published by GitHub Security Advisories.

Which products are affected by GHSA-wvhm-4hhf-97x9?

GHSA-wvhm-4hhf-97x9 affects 1 product, including: npm/prismjs:\u003e= 1.1.0, \u003c 1.21.0.

GHSA-wvhm-4hhf-97x9HighCVSS 7.1

Cross-Site Scripting in Prism

Vendor

GitHub Security Advisories

Published

August 7, 2020

Last Modified

January 9, 2023

🔗 CVE IDs covered (1)

CVE-2020-15138 →

📋 Description

Impact

The easing preview of the Previewers plugin has an XSS vulnerability that allows attackers to execute arbitrary code in Safari and Internet Explorer.

This impacts all Safari and Internet Explorer users of Prism >=v1.1.0 that use the Previewers plugin (>=v1.10.0) or the Previewer: Easing plugin (v1.1.0 to v1.9.0).

Patches

This problem is patched in v1.21.0.

Workarounds

To workaround the issue without upgrading, disable the easing preview on all impacted code blocks. You need Prism v1.10.0 or newer to apply this workaround.

References

The vulnerability was introduced by this commit on Sep 29, 2015 and fixed by Masato Kinugawa (#2506).

For more information

If you have any questions or comments about this advisory, please open an issue.

🎯 Affected products1

npm/prismjs:>= 1.1.0, < 1.21.0