Description
MyBB (aka MyBulletinBoard) 1.4.2 does not properly handle an uploaded file with a nonstandard file type that contains HTML sequences, which allows remote attackers to cause that file to be processed as HTML by Internet Explorer's content inspection, aka "Incomplete protection against MIME-sniffing." NOTE: this could be leveraged for XSS and other attacks.
Remediation
References
Related Vulnerabilities
phpBB CVE-2008-6507 Vulnerability (CVE-2008-6507)
WordPress Plugin Insert Html Snippet Cross-Site Request Forgery (1.2)
WordPress Permissions, Privileges, and Access Controls Vulnerability (CVE-2008-2146)
MySQL CVE-2023-22008 Vulnerability (CVE-2023-22008)
Oracle Database Server CVE-2013-1534 Vulnerability (CVE-2013-1534)