CVE-2013-4390: Apache Sling

Medium severity, CVSS 5.8. EPSS: 3.1% chance of exploitation in the next 30 days.

Open redirect vulnerability in the AbstractAuthenticationFormServlet in the Auth Core (org.apache.sling.auth.core) bundle before 1.1.4 in Apache Sling allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via a URL in the resource parameter, related to "a custom login form and XSS."

Affected products

• Apache Sling: any version
• Apache Sling Auth Core Component: up to and including 1.1.2; version 1.0.2 only; version 1.0.4 only; version 1.0.6 only; version 1.1.0 only

Published 2013-10-24. Last modified 2026-06-16.