CVE-2006-3420: Mybulletinboard

High severity, CVSS 7.5. EPSS: 1.5% chance of exploitation in the next 30 days.

Cross-site request forgery (CSRF) vulnerability in editpost.php in MyBulletinBoard (MyBB) before 1.1.5 allows remote attackers to perform unauthorized actions as a logged in user and delete arbitrary forum posts via a bbcode IMG tag with a modified delete parameter in a deletepost action. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.

Affected products

• Mybulletinboard Mybulletinboard: version 1.1 only; version 1.1.1 only; version 1.1.2 only; version 1.1.3 only; version 1.1.4 only

Published 2006-07-07. Last modified 2026-06-16.