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.

References

• https://nvd.nist.gov/vuln/detail/CVE-2008-0788
• http://community.mybboard.net/showthread.php?tid=27675
• http://secunia.com/advisories/28572/
• http://securityreason.com/securityalert/3656
• http://www.securityfocus.com/archive/1/486663
• http://www.vupen.com/english/advisories/2008/0238