CVE-2025-13079
Medium
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
SeverityMedium
CVSS5.3
Exploit probability—
ProductPopup Builder – Create highly converting, mobile friendly marketing popups.
PublishedFeb 19, 2026
First seenFeb 19, 2026
Weakness typeCWE-1241CWE-1241
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| popupbuilder Popup Builder – Create highly converting, mobile friendly marketing popups. | v ≤ 4.4.2 | — |
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