CVE-2018-11328: Joomla!

Medium severity, CVSS 4.7. EPSS: 1.3% chance of exploitation in the next 30 days.

An issue was discovered in Joomla! Core before 3.8.8. Under specific circumstances (a redirect issued with a URI containing a username and password when the Location: header cannot be used), a lack of escaping the user-info component of the URI could result in an XSS vulnerability.

Affected products

• Joomla! Joomla!: before 3.8.8 (fixed in 3.8.8)

Published 2018-05-22. Last modified 2026-06-17.