The WP Responsive Popup + Optin plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to and including 1.4. This is due to the settings form on the admin page (wpo_admin_page.php) lacking nonce generation (wp_nonce_field) and verification (wp_verify_nonce/check_admin_referer). This makes it possible for unauthenticated attackers to update all plugin settings including the 'wpo_image_url' parameter via a forged request, granted they can trick a site administrator into performing an action such as clicking a link.
History

Wed, 22 Apr 2026 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 22 Apr 2026 12:15:00 +0000

Type Values Removed Values Added
First Time appeared Sphex1987
Sphex1987 wp Responsive Popup + Optin
Wordpress
Wordpress wordpress
Vendors & Products Sphex1987
Sphex1987 wp Responsive Popup + Optin
Wordpress
Wordpress wordpress

Wed, 22 Apr 2026 08:30:00 +0000

Type Values Removed Values Added
Description The WP Responsive Popup + Optin plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to and including 1.4. This is due to the settings form on the admin page (wpo_admin_page.php) lacking nonce generation (wp_nonce_field) and verification (wp_verify_nonce/check_admin_referer). This makes it possible for unauthenticated attackers to update all plugin settings including the 'wpo_image_url' parameter via a forged request, granted they can trick a site administrator into performing an action such as clicking a link.
Title WP Responsive Popup + Optin <= 1.4 - Cross-Site Request Forgery to Stored Cross-Site Scripting via 'wpo_image_url' Parameter
Weaknesses CWE-352
References
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published: 2026-04-22T07:45:30.687Z

Updated: 2026-04-22T13:05:41.928Z

Reserved: 2026-03-13T14:14:27.086Z

Link: CVE-2026-4131

cve-icon Vulnrichment

Updated: 2026-04-22T13:05:34.089Z

cve-icon NVD

Status : Deferred

Published: 2026-04-22T09:16:24.080

Modified: 2026-04-22T20:22:50.570

Link: CVE-2026-4131

cve-icon Redhat

No data.