Reverse Tabnabbing Affecting showdown package, versions <1.9.1


Severity

Recommended
0.0
low
0
10

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  • Snyk IDSNYK-JS-SHOWDOWN-469487
  • published1 Oct 2019
  • disclosed3 Oct 2019
  • creditJammerware

Introduced: 1 Oct 2019

CVE NOT AVAILABLE CWE-1022  (opens in a new tab)

How to fix?

Upgrade showdown to version 1.9.1 or higher.

Overview

showdown is a JavaScript Markdown to HTML converter.

Affected versions of this package are vulnerable to Reverse Tabnabbing. ​due to the usage of target="_blank" without also adding rel="noopener noreferrer".

CVSS Scores

version 3.1