CVE-2023-6696
Popup Builder – Create highly converting, mobile friendly marketing popups <= 4.3.1 - Missing Authorization and Nonce Exposure
CVSS Score
8.1
EPSS Score
0.0%
EPSS Percentile
0th
The Popup Builder – Create highly converting, mobile friendly marketing popups. plugin for WordPress is vulnerable to unauthorized access of functionality due to a missing capability check on several functions in all versions up to, and including, 4.3.1. While some functions contain a nonce check, the nonce can be obtained from the profile page of a logged-in user. This allows subscribers to perform several actions including deleting subscribers and perform blind Server-Side Request Forgery.
| CWE | CWE-862 |
| Vendor | popupbuilder |
| Product | popup builder – create highly converting, mobile friendly marketing popups. |
| Published | Jun 15, 2024 |
| Last Updated | Apr 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
popupbuilder / Popup Builder – Create highly converting, mobile friendly marketing popups.
0 ≤ 4.3.1
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/9f86ec30-7a9d-4c36-8559-bde331c8b958?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/popup-builder/tags/4.2.3/com/classes/Ajax.php plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset/3096000/popup-builder/trunk/com/classes/Ajax.php
Credits
Lucio Sá