CVE-2018-11321: Joomla!

Medium severity, CVSS 6.5. EPSS: 1.9% chance of exploitation in the next 30 days.

An issue was discovered in com_fields in Joomla! Core before 3.8.8. Inadequate filtering allows users authorised to create custom fields to manipulate the filtering options and inject an unvalidated option.

Affected products

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

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