Detections
Analytics
CVE-2026-8661
medium
Description
Server-Side Cross-Site Scripting and Server-Side Request Forgery vulnerability in the markdown_to_pdf action of Rapid7 InsightConnect Markdown Plugin version 3.1.4 and earlier on Linux allows remote attackers to execute JavaScript server-side and make arbitrary outbound HTTP requests via crafted content embedded in Markdown input. The PDF rendering engine does not restrict script execution or outbound network access.
References
https://github.com/rapid7/insightconnect-plugins/pull/3721
https://github.com/rapid7/insightconnect-plugins/blob/master/plugins/markdown/help.md