PHP-Nuke 5.1 stores user and administrator passwords in a base-64 encoded cookie, which could allow remote attackers to gain privileges by stealing or sniffing the cookie and decoding it.

SQL injection vulnerability in article.php in PostNuke 0.62 through 0.64 allows remote attackers to bypass authentication via the user parameter.

Cross-site scripting (XSS) vulnerability in user.php in PostNuke 0.64 allows remote attackers to inject arbitrary web script or HTML via the uname parameter.

Cross-site scripting vulnerabilities in PostBoard 2.0.1 and earlier allows remote attackers to execute script as other users via (1) an [IMG] tag when BBCode is enabled, or (2) in a topic title.

Cross-site scripting in PostCalendar 3.02 allows remote attackers to insert arbitrary HTML and script, and steal cookies, by modifying a calendar entry in its preview page.

Cross-site scripting (XSS) vulnerability in PostNuke 0.71 and earlier allows remote attackers to inject arbitrary web script or HTML via the (1) name parameter in modules.php and (2) catid parameter in index.php.

PHP file inclusion vulnerability in user.php in PostNuke 0.703 allows remote attackers to include arbitrary files and possibly execute code via the caselist parameter.

Directory traversal vulnerability in PostNuke 0.723 and earlier allows remote attackers to include arbitrary files named theme.php via the theme parameter to index.php.

SQL injection vulnerability in PostCalendar 4.0.0 allows remote attackers to execute arbitrary SQL commands via search queries.

SQL injection vulnerability in PostNuke 7.2.6 and earlier allows remote attackers to execute arbitrary SQL via (1) the sif parameter to index.php in the Comments module or (2) timezoneoffset parameter to changeinfo.php in the Your_Account module.

PostNuke 0.7.2.6 allows remote attackers to gain information via a direct HTTP request to files in the (1) includes/blocks directory, (2) pnadodb directory, (3) NS-NewUser module, (4) NS-Your_Account, (5) NS-LostPassword module, or (6) NS-User module which reveals the path to the web server in a PHP error message.

SQL injection vulnerability in the members_list module in PostNuke 0.726, and possibly earlier, allows remote attackers to execute arbitrary SQL commands via the sortby parameter.

Cross-site scripting (XSS) vulnerability in the Downloads module in PostNuke up to 0.726, and possibly later versions, allows remote attackers to inject arbitrary HTML and web script via the ttitle parameter in a viewdownloaddetails action.

Multiple SQL injection vulnerabilities in (1) index.php, (2) modules.php, or (3) admin.php in PostNuke 0.760-RC2 allow remote attackers to execute arbitrary SQL code via the catid parameter.

SQL injection vulnerability in dl-search.php in PostNuke 0.750 and 0.760-RC2 allows remote attackers to execute arbitrary SQL commands via the show parameter.

SQL injection vulnerability in modules.php in PostNuke 0.760 RC3 allows remote attackers to execute arbitrary SQL statements via the sid parameter. NOTE: the vendor reports that they could not reproduce the issues for 760 RC3, or for .750.

Multiple cross-site scripting vulnerabilities in PostNuke 0.760-RC3 allow remote attackers to inject arbitrary web script or HTML via the (1) module parameter to admin.php or (2) op parameter to user.php. NOTE: the vendor reports that certain issues could not be reproduced for 760 RC3, or for .750. However, the op/user.php issue exists when the pnAntiCracker setting is disabled.

The modload op in the Reviews module for PostNuke 0.760-RC3 allows remote attackers to obtain sensitive information via an invalid id parameter, which reveals the path in a PHP error message.

Directory traversal vulnerability in the pnModFunc function in pnMod.php for PostNuke 0.750 through 0.760rc4 allows remote attackers to read arbitrary files via a .. (dot dot) in the func parameter to index.php.

Multiple SQL injection vulnerabilities in Xanthia.php in the Xanthia module in PostNuke 0.750 allow remote attackers to execute arbitrary SQL commands via the (1) name or (2) module parameter.

Multiple cross-site scripting (XSS) vulnerabilities in the RSS module in PostNuke 0.750 and 0.760RC2 and RC3 allow remote attackers to inject arbitrary web script or HTML via the (1) rss_url parameter to magpie_slashbox.php, or the url parameter to (2) magpie_simple.php or (3) magpie_debug.php.

Multiple cross-site scripting (XSS) vulnerabilities in PostNuke 0.750 and 0.760RC3 allow remote attackers to inject arbitrary web script or HTML via the (1) skin or (2) paletteid parameter to demo.php in the Xanthia module, or (3) the serverName parameter to config.php in the Multisites (aka NS-Multisites) module.

Directory traversal vulnerability in pnadminapi.php in the Xanthia module in PostNuke 0.760-RC3 allows remote administrators to read arbitrary files via a .. (dot dot) in the skin parameter.

SQL injection vulnerability in pnadmin.php in the Xanthia module in PostNuke 0.760-RC3 allows remote administrators to execute arbitrary SQL commands via the riga[0] parameter.

SQL injection vulnerability in readpmsg.php in PostNuke 0.750 allows remote attackers to execute arbitrary SQL commands via the start parameter.

Cross-site scripting (XSS) vulnerability in readpmsg.php in PostNuke 0.750 allows remote attackers to inject arbitrary web script or HTML via the start parameter.

Multiple cross-site scripting (XSS) vulnerabilities in PostNuke 0.760-RC4b allows remote attackers to inject arbitrary web script or HTML via (1) the moderate parameter to the Comments module or (2) htmltext parameter to html/user.php.

SQL injection vulnerability in the Downloads module in PostNuke 0.760-RC4b allows PostNuke administrators to execute arbitrary SQL commands via the show parameter to dl-viewdownload.php.

The server.php test script in ADOdb for PHP before 4.70, as used in multiple products including (1) Mantis, (2) PostNuke, (3) Moodle, (4) Cacti, (5) Xaraya, (6) PHPOpenChat, (7) MAXdev MD-Pro, and (8) MediaBeez, when the MySQL root password is empty, allows remote attackers to execute arbitrary SQL commands via the sql parameter.

Dynamic code evaluation vulnerability in tests/tmssql.php test script in ADOdb for PHP before 4.70, as used in multiple products including (1) Mantis, (2) PostNuke, (3) Moodle, (4) Cacti, (5) Xaraya, (6) PhpOpenChat, possibly (7) MAXdev MD-Pro, and (8) Simplog, allows remote attackers to execute arbitrary PHP functions via the do parameter, which is saved in a variable that is then executed as a function, as demonstrated using phpinfo.

Interpretation conflict in PostNuke 0.761 and earlier allows remote attackers to conduct cross-site scripting (XSS) attacks via HTML tags with a trailing "<" character, which is interpreted as a ">" character by some web browsers but bypasses the blacklist protection in (1) the pnVarCleanFromInput function in pnAPI.php, (2) the pnSecureInput function in pnAntiCracker.php, and (3) the htmltext parameter in an edituser operation to user.php.

SQL injection vulnerability in the NS-Languages module for PostNuke 0.761 and earlier, when magic_quotes_gpc is off, allows remote attackers to execute arbitrary SQL commands via the language parameter to admin.php.

Cross-site scripting (XSS) vulnerability in the NS-Languages module for PostNuke 0.761 and earlier, when magic_quotes_gpc is enabled, allows remote attackers to inject arbitrary web script or HTML via the language parameter in a missing or translation operation.