Unspecified vulnerability in inc/datahandler/user.php in MyBB before 1.2.13 has unknown impact and attack vectors related to the $user['language'] variable, probably related to SQL injection.
Directory traversal vulnerability in inc/class_language.php in MyBB before 1.2.13 has unknown impact and attack vectors related to the $language variable.
Multiple cross-site request forgery (CSRF) vulnerabilities in MyBB 1.2.11 and earlier allow remote attackers to (1) hijack the authentication of moderators or administrators for requests that delete threads via a do_multideletethreads action to moderation.php and (2) hijack the authentication of arbitrary users for requests that delete private messages (PM) via a delete action to private.php.
Multiple SQL injection vulnerabilities in MyBB 1.2.10 and earlier allow remote moderators and administrators to execute arbitrary SQL commands via (1) the mergepost parameter in a do_mergeposts action, (2) rid parameter in an allreports action, or (3) threads parameter in a do_multimovethreads action to (a) moderation.php; or (4) gid parameter to (b) admin/usergroups.php.
MyBB 1.2.4 allows remote attackers to obtain sensitive information via the (1) action[] parameter to member.php, (2) imagehash[] parameter to captcha.php, and (3) a direct request to inc/datahandlers/event.php, which reveal the installation path in the resulting error message.
Multiple SQL injection vulnerabilities in calendar.php in MyBB (aka MyBulletinBoard) 1.2.5 and earlier allow remote attackers to execute arbitrary SQL commands via the (1) year or (2) month parameter. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.
SQL injection vulnerability in the create_session function in class_session.php in MyBB (aka MyBulletinBoard) 1.2.3 and earlier allows remote attackers to execute arbitrary SQL commands via the Client-IP HTTP header, as utilized by index.php, a related issue to CVE-2006-3775.
member.php in MyBB (aka MyBulletinBoard), when debug mode is available, allows remote authenticated users to change the password of any account by providing the account's registered e-mail address in a debug request for a do_lostpw action, which prints the change password verification code in the debug output.
Cross-site request forgery (CSRF) vulnerability in MyBB (aka MyBulletinBoard) 1.2.2 allows remote attackers to send messages to arbitrary users. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.
Cross-site scripting (XSS) vulnerability in private.php in MyBB (aka MyBulletinBoard) allows remote authenticated users to inject arbitrary web script or HTML via the Subject field, a different vector than CVE-2006-2949.