An issue was discovered in phpList through 3.5.4. An XSS vulnerability occurs within the Import Administrators section via upload of an edited text document. This also affects the Subscriber Lists section.

An issue was discovered in phpList through 3.5.4. An error-based SQL Injection vulnerability exists via the Import Administrators section.

phpList before 3.5.4 allows XSS via /lists/admin/user.php and /lists/admin/users.php.

phpList before 3.5.3 allows XSS, with resultant privilege elevation, via lists/admin/template.php.