CVE-2017-11593: Ooso Markdown Preview Plus

Medium severity, CVSS 6.1. EPSS: 0.8% chance of exploitation in the next 30 days.

Cross-site scripting (XSS) vulnerability in the Markdown Preview Plus extension before 0.5.7 for Chrome allows remote attackers to inject arbitrary web script or HTML into some web applications via the upload and display of crafted text, markdown, or rst files that are designed to be viewed in the browser as plain text, but that will be converted to HTML without proper sanitization.

Affected products

• Ooso Markdown Preview Plus: up to and including 0.4.5

Published 2017-07-24. Last modified 2026-06-17.