CVE-2018-17874: Expressionengine

Medium severity, CVSS 6.1. EPSS: 0.6% chance of exploitation in the next 30 days.

ExpressionEngine before 4.3.5 has reflected XSS.

Affected products

• Expressionengine Expressionengine: before 4.3.5 (fixed in 4.3.5)

Published 2018-10-01. Last modified 2026-06-17.