CVE-2015-2786: Mybb

High severity, CVSS 10.0. EPSS: 1.4% chance of exploitation in the next 30 days.

Unspecified vulnerability in MyBB (aka MyBulletinBoard) before 1.8.4 has unknown attack vectors related to "Group join request notifications sent to wrong group leaders."

Affected products

• Mybb Mybb: up to and including 1.8.3

Published 2015-03-29. Last modified 2026-06-17.