WordPress optinmonster has 5 known advisories in the phpwarden feed. Feed 2026.10.29.1, updated 2026-10-28.
| CVE | Title | Severity | CVSS | Affected | Fixed in |
|---|---|---|---|---|---|
| CVE-2021-39341 | The OptinMonster WordPress plugin is vulnerable to sensitive information disclosure and unauthorized setting updates due to insufficient aut | high | 8.2 | <=2.6.4 | – |
| CVE-2016-10996 | The optinmonster plugin before 1.1.4.6 for WordPress has incorrect access control for shortcodes because of a nonce leak. | medium | 5.3 | <1.1.4.6 | 1.1.4.6 |
| CVE-2021-39325 | The OptinMonster WordPress plugin is vulnerable to Reflected Cross-Site Scripting due to insufficient input validation in the load_previews | medium | 6.1 | <=2.6.0 | – |
| CVE-2023-0772 | The Popup Builder by OptinMonster WordPress plugin before 2.12.2 does not ensure that the campaign to be loaded via some shortcodes is actua | medium | 6.5 | <2.12.2 | 2.12.2 |
| CVE-2024-4045 | The Popup Builder by OptinMonster – WordPress Popups for Optins, Email Newsletters and Lead Generation plugin for WordPress is vulnerable to | medium | 6.4 | <2.16.2 | 2.16.2 |
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