CVE-2023-6710: Modcluster Mod Proxy Cluster

Medium severity, CVSS 5.4. EPSS: 2.2% chance of exploitation in the next 30 days.

A flaw was found in the mod_proxy_cluster in the Apache server. This issue may allow a malicious user to add a script in the 'alias' parameter in the URL to trigger the stored cross-site scripting (XSS) vulnerability. By adding a script on the alias parameter on the URL, it adds a new virtual host and adds the script to the cluster-manager page.

Affected products

• Modcluster Mod Proxy Cluster: affected versions not specified
• Red Hat Enterprise Linux: version 9.0 only

Published 2023-12-12. Last modified 2026-09-19.