The Popup Maker WordPress plugin before 1.16.11 does not sanitise and escape some of its Popup options, which could allow users with a role as low as Contributor to perform Stored Cross-Site Scripting attacks, which could be used against admins

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Popup Maker Popup Maker – Popup for opt-ins, lead gen, & more.This issue affects Popup Maker – Popup for opt-ins, lead gen, & more: from n/a through 1.17.1.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Daniel Iser Popup Maker popup-maker allows Stored XSS.This issue affects Popup Maker: from n/a through <= 1.20.2.

Missing Authorization vulnerability in Daniel Iser Popup Maker popup-maker.This issue affects Popup Maker: from n/a through <= 1.19.2.

Missing Authorization vulnerability in Daniel Iser Popup Maker popup-maker allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Popup Maker: from n/a through <= 1.17.1.

The Popup Maker – Popup for opt-ins, lead gen, & more plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's shortcode(s) in all versions up to, and including, 1.18.2 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The Popup Maker – Boost Sales, Conversions, Optins, Subscribers with the Ultimate WP Popups Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘closetext’ parameter in all versions up to, and including, 1.19.0 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.