The Popup Builder – Create highly converting, mobile friendly marketing popups. plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.4.2. This is due to the plugin generating predictable unsubscribe tokens using deterministic data. This makes it possible for unauthenticated attackers to unsubscribe arbitrary subscribers from mailing lists via brute-forcing the unsubscribe token, granted they know the victim's email address

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Fixes

Solution

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Workaround

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History

Thu, 19 Feb 2026 10:30:00 +0000

Type Values Removed Values Added
First Time appeared Popupbuilder
Popupbuilder popup Builder – Create Highly Converting, Mobile Friendly Marketing Popups.
Wordpress
Wordpress wordpress
Vendors & Products Popupbuilder
Popupbuilder popup Builder – Create Highly Converting, Mobile Friendly Marketing Popups.
Wordpress
Wordpress wordpress

Thu, 19 Feb 2026 04:15:00 +0000

Type Values Removed Values Added
Description The Popup Builder – Create highly converting, mobile friendly marketing popups. plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.4.2. This is due to the plugin generating predictable unsubscribe tokens using deterministic data. This makes it possible for unauthenticated attackers to unsubscribe arbitrary subscribers from mailing lists via brute-forcing the unsubscribe token, granted they know the victim's email address
Title Popup Builder - Create highly converting, mobile friendly marketing popups. <= 4.4.2 - Improper Authorization to Unauthenticated Subscriber Removal via Predictable Tokens
Weaknesses CWE-1241
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-02-19T17:42:29.750Z

Reserved: 2025-11-12T16:38:13.590Z

Link: CVE-2025-13079

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-02-19T07:17:29.823

Modified: 2026-02-19T15:53:02.850

Link: CVE-2025-13079

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-02-19T10:07:39Z

Weaknesses