CVE-2017-5214: Codextrous b2j Contact

High severity, CVSS 7.5. EPSS: 1.2% chance of exploitation in the next 30 days.

The Codextrous B2J Contact (aka b2j_contact) extension before 2.1.13 for Joomla! allows prediction of a uniqid value based on knowledge of a time value. This makes it easier to read arbitrary uploaded files.

Affected products

• Codextrous b2j Contact: up to and including 2.1.12

Published 2017-05-17. Last modified 2026-06-17.