CVE-2017-5553: b2evolution

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

Cross-site scripting (XSS) vulnerability in plugins/markdown_plugin/_markdown.plugin.php in b2evolution before 6.8.5 allows remote authenticated users to inject arbitrary web script or HTML via a javascript: URL.

Affected products

• b2evolution b2evolution: up to and including 6.8.4

Published 2017-01-23. Last modified 2026-06-17.