modules.php in PHP-Nuke 6.x to 7.6 allows remote attackers to obtain sensitive information via a direct request to (1) my_headlines, (2) userinfo, or (3) search, which reveals the path in a PHP error message.

The Web_Links module for PHP-Nuke 7.6 allows remote attackers to obtain sensitive information via an invalid show parameter, which triggers a division by zero PHP error that leaks the full pathname of the server.

HTTP Response Splitting vulnerability in the Surveys module in PHP-Nuke 7.6 allows remote attackers to spoof web content and poison web caches via hex-encoded CRLF ("%0d%0a") sequences in the forwarder parameter.

Multiple SQL injection vulnerabilities in the Web_Links module for PHP-Nuke 7.6 allow remote attackers to execute arbitrary SQL commands via (1) the email or url parameters in the Add function, (2) the url parameter in the modifylinkrequestS function, (3) the orderby or min parameters in the viewlink function, (4) the orderby, min, or show parameters in the search function, or (5) the ratenum parameter in the MostPopular function.

SQL injection vulnerability in the Top module for PHP-Nuke 6.x through 7.6 allows remote attackers to execute arbitrary SQL commands via the querylang parameter.

Multiple cross-site scripting (XSS) vulnerabilities in Php-Nuke 7.5 allow remote attackers to inject arbitrary HTML or web script via (1) the newdownloadshowdays parameter in a NewDownloads operation or (2) the newlinkshowdays parameter in a NewLinks operation.

Php-Nuke 7.5 allows remote attackers to determine the full path of the web server via invalid or missing arguments to (1) db.php, (2) mainfile.php, (3) Downloads/index.php, or (4) Web_Links/index.php, which lists the path in a PHP error message.

Cross-site request forgery (CSRF) vulnerability in Php-Nuke 6.x through 7.1.0 allows remote attackers to gain administrative privileges via an img tag with a URL to admin.php.

Multiple cross-site scripting (XSS) vulnerabilities in Php-Nuke 6.x through 7.3 allow remote attackers to inject arbitrary HTML or web script into the (1) optionbox parameter in the News module, (2) date parameter in the Statistics module, (3) year, month, and month_1 parameters in the Stories_Archive module, (4) mode, order, and thold parameters in the Surveys module, or (5) a SQL statement to index.php, as processed by mainfile.php.

SQL injection vulnerability in modules.php in NukeCalendar 1.1.a, as used in PHP-Nuke, allows remote attackers to execute arbitrary SQL commands via the eid parameter.