GHSA-h6mq-3cj6-h738

Описание

Versions of showdown prior to 1.9.1 are vulnerable to Reverse Tabnabbing. The package uses target='_blank' in anchor tags, allowing attackers to access window.opener for the original page when opening links. This is commonly used for phishing attacks.

Recommendation

Upgrade to version 1.9.1 or later.