SQL injection vulnerability in Load.php in Simple Machines Forum (SMF) 1.1.4 and earlier allows remote attackers to execute arbitrary SQL commands by setting the dbcharacterset parameter to a multibyte character set such as big5, which causes the addslashes PHP function to produce a "\" (backslash) sequence that does not quote the "'" (single quote) character, as demonstrated via a manlabels action to index.php.
Unspecified vulnerability in Simple Machines Forum (SMF) 1.1.x before 1.1.5 and 1.0.x before 1.0.13 has unknown impact and attack vectors, probably cross-site scripting (XSS), related to "use of the html-tag."
Simple Machines Forum (SMF) 1.1.x before 1.1.5 and 1.0.x before 1.0.13, when running in PHP before 4.2.0, does not properly seed the random number generator, which has unknown impact and attack vectors.
Simple Machines Forum (SMF), probably 1.1.4, relies on "randomly generated static" to hinder brute-force attacks on the WAV file (aka audio) CAPTCHA, which allows remote attackers to pass the CAPTCHA test via an automated attack that considers Hamming distances. NOTE: this issue reportedly exists because of an insufficient fix for CVE-2007-3308.
Cross-site request forgery (CSRF) vulnerability in index.php in Simple Machines Forum (SMF) 1.0 before 1.0.15 and 1.1 before 1.1.7 allows remote attackers to hijack the authentication of admins for requests that install packages via the package parameter in an install2 action.
Directory traversal vulnerability in index.php in Simple Machines Forum (SMF) 1.0 before 1.0.15 and 1.1 before 1.1.7 allows remote authenticated users to configure arbitrary local files for execution via directory traversal sequences in the value of the themedir field during a jsoption action, related to Sources/QueryString.php and Sources/Themes.php, as demonstrated by a local .gif file in attachments/ with PHP code that was uploaded through a profile2 action to index.php.
Cross-site scripting (XSS) vulnerability in Simple Machines Forum (SMF) 1.1.4 and earlier allows remote attackers to inject arbitrary web script or HTML via (1) Itemid or (2) topic arguments.
Directory traversal vulnerability in index.php in Simple Machines Forum (SMF) 1.0 before 1.0.15 and 1.1 before 1.1.7 allows remote authenticated administrators to install packages from arbitrary directories via a .. (dot dot) in the package parameter during an install2 action, as demonstrated by a predictable package filename in attachments/ that was uploaded through a post2 action to index.php.