Secunia Research has discovered multiple vulnerabilities in phpList, which can be exploited by malicious users to conduct script insertion and SQL injection attacks and by malicious people to conduct cross-site scripting and script insertion attacks.
1) Input passed via the "usercheck" parameter to admin/index.php (when "page" is set to "usercheck") is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site.
2) Input passed via the "strCharSet" parameter to admin/pagetop.php is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site.
Successful exploitation of this vulnerability requires that "register_globals" is enabled.
3) Input passed via the "description" parameter when adding or editing a subscriber list description is not properly sanitised before being displayed to the user. This can be exploited to insert arbitrary HTML and script code, which will execute in a user's browser session in context of an affected site when the malicious data is being viewed.
Successful exploitation of this vulnerability requires permissions to manage lists.
4) Input passed via the "login" parameter to admin/index.php is not properly sanitised in admin/eventlog.php before being displayed to the user. This can be exploited to insert arbitrary HTML and script code, which will execute in a user's browser session in context of an affected site when the malicious data is being viewed.
5) Input passed via the "findby" parameter to admin/index.php (when "page" is set to "users") is not properly sanitised before being used in SQL queries. This can be exploited to manipulate SQL queries by injecting arbitrary SQL code.
Successful exploitation of this vulnerability requires permissions to manage users.
The vulnerabilities are confirmed in version 2.10.14. Other versions may also be affected.