Advanced Poll before 1.61, when using a flat file database, allows remote attackers to gain privileges by setting the logged_in parameter.

Eval injection vulnerability in comments.php in Advanced Poll 2.0.2 allows remote attackers to execute arbitrary PHP code via the (1) id, (2) template_set, or (3) action parameter.

Multiple PHP remote file inclusion vulnerabilities in Advanced Poll 2.0.2 allow remote attackers to execute arbitrary PHP code via the include_path parameter in (1) booth.php, (2) png.php, (3) poll_ssi.php, or (4) popup.php, the (5) base_path parameter to common.inc.php.

Directory traversal vulnerability in Advanced Poll 2.0.2 allows remote attackers to read arbitrary files or inject arbitrary local PHP files via .. sequences in the base_path or pollvars[lang] parameters to the admin files (1) index.php, (2) admin_tpl_new.php, (3) admin_tpl_misc_new.php, (4) admin_templates_misc.php, (5) admin_templates.php, (6) admin_stats.php, (7) admin_settings.php, (8) admin_preview.php, (9) admin_password.php, (10) admin_logout.php, (11) admin_license.php, (12) admin_help.php, (13) admin_embed.php, (14) admin_edit.php, or (15) admin_comment.php.

Advanced Poll 2.0.2 allows remote attackers to obtain sensitive information via an HTTP request to info.php, which invokes the phpinfo() function.

Cross-site scripting (XSS) vulnerability in popup.php in Advanced Poll 2.0.3 and earlier allows remote attackers to inject arbitrary web script or HTML via the poll_ident parameter.

Multiple SQL injection vulnerabilities in Advanced Poll 2.02 allow remote attackers to execute arbitrary SQL commands via the (1) id parameter to comments.php or (2) poll_id parameter to page.php.

Multiple cross-site scripting (XSS) vulnerabilities in Advanced Poll 2.02 allow remote attackers to inject arbitrary web script or HTML via the (1) id parameter to comments.php or (2) poll_id parameter to page.php. NOTE: it is possible that this issue is resultant from CVE-2006-1616.

SQL injection vulnerability in include/class_poll.php in Advanced Poll 2.0.4 allows remote attackers to execute arbitrary SQL commands via the User-Agent HTTP header.

include/class_poll.php in Advanced Poll 2.0.4 uses the HTTP_X_FORWARDED_FOR (X-Forwarded-For HTTP header) to identify the IP address of a client, which makes it easier for remote attackers to spoof the source IP and bypass voting restrictions.