CVE-2018-17193: Apache Nifi

Medium severity, CVSS 6.1. EPSS: 2.8% chance of exploitation in the next 30 days.

The message-page.jsp error page used the value of the HTTP request header X-ProxyContextPath without sanitization, resulting in a reflected XSS attack. Mitigation: The fix to correctly parse and sanitize the request attribute value was applied on the Apache NiFi 1.8.0 release. Users running a prior 1.x release should upgrade to the appropriate release.

Affected products

• Apache Nifi: from 1.0.0, up to and including 1.7.1

Published 2018-12-19. Last modified 2026-06-17.