CVE-2026-45120

MyBB (free and open source forum software) versions prior to 1.8.40 contain an authorization flaw in the calendar module . The private-event check implemented in get_events() within inc/functions_calendar.php and the event action is missing from the remaining calendar.php actions. This allows use...

EUVD-2026-61017

MyBB is free and open source forum software. Prior to 1.8.40, the calendar module does not verify private event status consistently, allowing users with viewing and moderation permissions to access and moderate private events. The private-event check used by getevents in inc/functionscalendar.php...

CVE-2026-45122: Incorrect Authorization

MyBB is free and open source forum software. Prior to 1.8.40, the calendar module does not validate moderation permissions for the destination calendar when moving events. A user with moderation permission for the source calendar can move an event to a calendar where the user has only viewing...

EUVD-2026-36414

Quest Bot is an opensource Discord Bot. Prior to version 1.1.6, a moderator with the relevant Discord permission bit can use the bot to moderate users above them in the Discord role hierarchy, as long as the bot itself outranks the target. This bypasses Discord’s normal role hierarchy protections...

PT-2026-48860

Name of the Vulnerable Software and Affected Versions Quest Bot versions prior to 1.1.6 Description A moderator possessing the necessary Discord permission bit can utilize the bot to perform moderation actions on users who are higher in the Discord role hierarchy, provided the bot itself has a...