CVE-2020-8823: Sockjs Project Sockjs

Medium severity, CVSS 6.1. EPSS: 1.9% chance of exploitation in the next 30 days.

htmlfile in lib/transport/htmlfile.js in SockJS before 0.3.0 is vulnerable to Reflected XSS via the /htmlfile c (aka callback) parameter.

Affected products

• Sockjs Project Sockjs: before 0.3.0 (fixed in 0.3.0)

Published 2020-02-10. Last modified 2026-06-17.