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CVE-2025-13079

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CVE-2025-13079

Published: Feb 19, 2026

Modified: Apr 8, 2026

PUBLISHED

CVSS v3.1

5.3

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

VendorProductVersions

popupbuilder

Popup Builder – Create highly converting, mobile friendly marketing popups.

affected
0 - <= 4.4.2

Weaknesses (CWE)

CWE-1241

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

References

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