CVE-2017-11594: Loomio

Medium severity, CVSS 5.4. EPSS: 1.2% chance of exploitation in the next 30 days.

Cross-site scripting (XSS) vulnerability in the Markdown parser in Loomio before 1.8.0 allows remote attackers to inject arbitrary web script or HTML via non-sanitized Markdown content in a new thread or a thread comment.

Affected products

• Loomio Loomio: version 1.0.0 only; version 1.1.0 only; version 1.2.0 only; version 1.3.0 only; version 1.4.0 only; version 1.5.0 only; …

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