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.
History

Sat, 31 Jan 2026 14:30:00 +0000

Type Values Removed Values Added
Description 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.
Title Popup Box <= 6.1.1 - Cross-Site Request Forgery to Popup Status Change
Weaknesses CWE-352
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-01-31T14:22:29.035Z

Reserved: 2026-01-19T01:15:36.466Z

Link: CVE-2026-1165

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-01-31T15:15:50.480

Modified: 2026-01-31T15:15:50.480

Link: CVE-2026-1165

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.