The Freemius SDK, as used by hundreds of WordPress plugin and theme developers, was vulnerable to Cross-Site Request Forgery and Information disclosure due to missing capability checks and nonce protection on the _get_debug_log, _get_db_option, and the _set_db_option functions in versions up to, and including 2.4.2. Any WordPress plugin or theme running a version of Freemius less than 2.4.3 is vulnerable.

The Newsletter Manager plugin for WordPress is vulnerable to insecure deserialization in versions up to, and including, 1.5.1. This is due to unsanitized input from the 'customFieldsDetails' parameter being passed through a deserialization function. This potentially makes it possible for unauthenticated attackers to inject a serialized PHP object.

Multiple cross-site scripting (XSS) vulnerabilities in the Newsletter Manager plugin before 1.0.2 for WordPress allow remote attackers to inject arbitrary web script or HTML via the (1) xyz_em_campName to admin/create_campaign.php or (2) admin/edit_campaign.php, (3) xyz_em_email parameter to admin/edit_email.php, (4) xyz_em_exportbatchSize parameter to import_export.php, or (5) pagination limit in the Newsletter Manager options.

Cross-site scripting (XSS) vulnerability in admin/test_mail.php in the Newsletter Manager plugin 1.0.2 and earlier for WordPress allows remote attackers to inject arbitrary web script or HTML via the id parameter.

Multiple cross-site request forgery (CSRF) vulnerabilities in the Newsletter Manager plugin 1.0.2 and earlier for WordPress allow remote attackers to hijack the authentication of administrators for requests that (1) change an email address or (2) conduct script insertion attacks. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.