PLUGIN SECURITY
Is Optinmonster safe?
Known vulnerabilities, PHP compatibility and safer alternatives for the Optinmonster WordPress plugin — checked against WP Clinic's local security database.
Plugin details
- Slug:
optinmonster - Requires PHP: 7.2+
- Max supported PHP (analyzed): 8.4
Known vulnerabilities
- Popup Builder & Popup Maker for WordPress – OptinMonster Email Marketing and Lead Generation [optinmonster] < 2.6.5 [CVE-2021-39341, WordPress OptinMonster plugin <= 2.6.4 - Unprotected REST-API to Sensitive Information Disclosure and Unauthorized API access vulnerability, OptinMonster <= 2.6.4 - Unprotected REST-API Endpoints, OptinMonster < 2.6.5 - Unprotected REST-API Endpoints]
- Popup Builder & Popup Maker for WordPress – OptinMonster Email Marketing and Lead Generation [optinmonster] < 2.6.1 [CVE-2021-39325, WordPress OptinMonster plugin <= 2.6.0 - Reflected Cross-Site Scripting (XSS) vulnerability, OptinMonster <= 2.6.0 - Reflected Cross-Site Scripting]
- Popup Builder & Popup Maker for WordPress – OptinMonster Email Marketing and Lead Generation [optinmonster] < 1.1.4.6 [CVE-2016-10996, Popup Builder by OptinMonster <= 1.1.4.5 - Remote Code Execution, OptinMonster <= 1.1.4.5 - Execution of Arbitrary Shortcodes]
- Popup Builder & Popup Maker for WordPress – OptinMonster Email Marketing and Lead Generation [optinmonster] < 1.1.4.6 [WordPress OptinMonster Plugin <= 1.1.4.5 - Execution of Arbitrary Shortcodes]
- Popup Builder & Popup Maker for WordPress – OptinMonster Email Marketing and Lead Generation [optinmonster] < 2.12.2 [CVE-2023-0772, OptinMonster <= 2.12.1 - Authenticated (Subscriber+) Sensitive Information Disclosure via Shortcode, WordPress OptinMonster Plugin < 2.12.2 is vulnerable to Broken Access Control, Popup Builder by OptinMonster < 2.12.2 - Subscriber+ Arbitrary Post Content Disclosure]
+ 3 more known vulnerabilities
- Popup Builder & Popup Maker for WordPress – OptinMonster Email Marketing and Lead Generation [optinmonster] < 2.6.5 [CVE-2021-34650, OptinMonster < 2.6.1 - Reflected Cross-Site Scripting (XSS)]
- Popup Builder & Popup Maker for WordPress – OptinMonster Email Marketing and Lead Generation [optinmonster] < 2.16.0 [CVE-2024-33691, WordPress OptinMonster Plugin <= 2.15.3 is vulnerable to Cross Site Request Forgery (CSRF), Popup Builder by OptinMonster – WordPress Popups for Optins, Email Newsletters and Lead Generation <= 2.15.3 - Cross-Site Request Forgery to Notice Dismissal]
- Popup Builder & Popup Maker for WordPress – OptinMonster Email Marketing and Lead Generation [optinmonster] < 2.16.2 [CVE-2024-4045, Popup Builder by OptinMonster – WordPress Popups for Optins, Email Newsletters and Lead Generation <= 2.16.1 - Authenticated (Contributor+) Stored Cross-Site Scripting, WordPress OptinMonster Plugin <= 2.16.1 is vulnerable to Cross Site Scripting (XSS)]
Vulnerabilities are matched against the exact installed version when it's known. Always keep the plugin updated to the latest release.
Safer / more established alternatives
- WooCommerce — 7000000+ active installs
- Hostinger Reach – AI-Powered Email Marketing for WordPress — 1000000+ active installs — max PHP 8.4
- WooCommerce PayPal Payments — 800000+ active installs — max PHP 8.4
- Popup Maker – Boost Sales, Conversions, Optins, Subscribers with the Ultimate WP Popup Builder — 700000+ active installs — max PHP 8.4
- Pinterest for WooCommerce — 300000+ active installs
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