CVE-2006-3761: Mybulletinboard

Medium severity, CVSS 4.3. EPSS: 2.6% chance of exploitation in the next 30 days.

Cross-site scripting (XSS) vulnerability in inc/functions_post.php in MyBB (aka MyBulletinBoard) 1.0 RC2 through 1.1.4 allows remote attackers to inject arbitrary web script or HTML via a javascript URI with an SGML numeric character reference in the url BBCode tag, as demonstrated using "javascript".

Affected products

• Mybulletinboard Mybulletinboard: version 1.0.1 only; version 1.0.2 only; version 1.0.3 only; version 1.0.4 only; version 1.0_final only; version 1.0_pr2 only; …

Published 2006-07-21. Last modified 2026-06-16.