CVE-2016-9418: Mybb Merge System

High severity, CVSS 7.5. EPSS: 2.3% chance of exploitation in the next 30 days.

MyBB (aka MyBulletinBoard) before 1.8.8 on Windows and MyBB Merge System before 1.8.8 on Windows might allow remote attackers to obtain sensitive information from ACP backups via vectors involving a short name.

Affected products

• Mybb Merge System: up to and including 1.8.7
• Mybb Mybb: up to and including 1.8.7

Published 2017-01-31. Last modified 2026-06-17.