CVE-2020-10240: Joomla!

Medium severity, CVSS 5.3. EPSS: 1.3% chance of exploitation in the next 30 days.

An issue was discovered in Joomla! before 3.9.16. Missing length checks in the user table can lead to the creation of users with duplicate usernames and/or email addresses.

Affected products

• Joomla! Joomla!: from 3.0.0, before 3.9.16 (fixed in 3.9.16)

Published 2020-03-16. Last modified 2026-06-17.