CVE · Medium

CVE-2025-13079 — Popup Builder – Create highly converting, mobile friendly marketing popups. [popup-builder] < 4.4.3

CVE Vulnerability Type Severity Affected Fixed in Published Status
CVE-2025-13079 Popup Builder – Create highly converting, mobile friendly marketing popups. [popup-builder] < 4.4.3 Use of Predictable Algorithm in Random Number Generator Medium 5.3 < 4.4.3 4.4.3 2026-02-18

CVE-2025-13079

The Popup Builder plugin for WordPress contains a flaw in its handling of unsubscribe tokens, which can be guessed by an attacker with knowledge of a subscriber's email address. This weakness allows unauthorized individuals to remove any user from mailing lists without proper authentication. The issue affects all versions up to and including 4.4.2.

Based on public CVE data (MITRE/NVD).

Scan your WordPress site free

No signup, no credit card — enter your URL and get a security report in seconds.