CVE-2019-17220: Rocket.chat

Medium severity, CVSS 6.1. EPSS: 4% chance of exploitation in the next 30 days.

Rocket.Chat before 2.1.0 allows XSS via a URL on a ![title] line.

Affected products

• Rocket.chat Rocket.chat: before 2.1.0 (fixed in 2.1.0)

Published 2019-10-21. Last modified 2026-06-17.