CVE-2023-6710: modcluster mod_proxy_cluster Cross-site Scripting

Vulnerability summary

CVE-2023-6710 is a medium (CVSS 5.4) Cross-site Scripting vulnerability in modcluster mod_proxy_cluster. EPSS estimates a 2.24% chance of exploitation in the next 30 days, higher than 82.5% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 12-12-2023
   PublishedVulnerability first disclosed.
2. 19-09-2026
   Last modifiedVulnerability information updated.

Description

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.

• CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.