CVE-2026-1165
MEDIUMCVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Lifecycle Timeline
2Description
The Popup Box plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 6.1.1. This is due to a flawed nonce implementation in the 'publish_unpublish_popupbox' function that verifies a self-created nonce rather than one submitted in the request. This makes it possible for unauthenticated attackers to change the publish status of popups via a forged request, granted they can trick a site administrator into performing an action such as clicking a link.
Analysis
The Popup Box WordPress plugin through version 6.1.1 contains a Cross-Site Request Forgery vulnerability where the nonce validation mechanism accepts internally-generated tokens instead of user-submitted ones, allowing unauthenticated attackers to alter popup publish status through social engineering attacks targeting site administrators. An attacker can trick an admin into clicking a malicious link to toggle popups on or off without their knowledge or consent. …
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Remediation
Within 30 days: Identify affected systems running for WordPress is vulnerable to Cross-Site Request Forgery in and apply vendor patches as part of regular patch cycle. Verify anti-CSRF tokens are enforced.
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