CVE-2014-6393: Openjsf Express

Medium severity, CVSS 6.1. EPSS: 1.1% chance of exploitation in the next 30 days.

The Express web framework before 3.11 and 4.x before 4.5 for Node.js does not provide a charset field in HTTP Content-Type headers in 400 level responses, which might allow remote attackers to conduct cross-site scripting (XSS) attacks via characters in a non-standard encoding.

Affected products

• Openjsf Express: up to and including 3.10.5; version 4.0.0 only; version 4.1.0 only; version 4.1.1 only; version 4.1.2 only; version 4.2.0 only; …

Published 2017-08-09. Last modified 2026-06-17.