The SendPulse Email Marketing Newsletter plugin for WordPress is vulnerable to Stored Cross-Site Scripting via _sp_form_code Post Meta in all versions up to, and including, 2.2.5 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires the attacker to create a sendpulse_form post containing a benign SendPulse loader script tag alongside arbitrary HTML (e.g., an img onerror payload), which bypasses the allow-list check and executes in the browser of any user — including administrators — who previews or views a page rendering the [sendpulse-form] shortcode.

Exposure of Sensitive System Information to an Unauthorized Control Sphere vulnerability in SendPulse SendPulse Email Marketing Newsletter sendpulse-email-marketing-newsletter allows Retrieve Embedded Sensitive Data.This issue affects SendPulse Email Marketing Newsletter: from n/a through <= 2.2.1.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in SendPulse SendPulse Email Marketing Newsletter sendpulse-email-marketing-newsletter allows Stored XSS.This issue affects SendPulse Email Marketing Newsletter: from n/a through <= 2.1.6.