Popupkit <= 2.2.0 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Subscriber Data Deletion

2026-01-05 16:05

Athiwat Tiprasaharn (Jitlada)

Strategic Overview

Status

Patched in 2.2.1

Affected PluginPopup builder with Gamification, Multi-Step Popups, Page-Level Targeting, and WooCommerce Triggers

Affected Version<= 2.2.0

CVSS4.3Medium

CVECVE-2025-14441

View all Popup builder with Gamification, Multi-Step Popups, Page-Level Targeting, and WooCommerce Triggers vulnerabilities

Vulnerability Overview

The Popupkit plugin for WordPress is vulnerable to arbitrary subscriber data deletion due to missing authorization on the DELETE `/subscribers` REST API endpoint in all versions up to, and including, 2.2.0. This is due to the `permission_callback` only validating wp_rest nonce without checking user capabilities. This makes it possible for authenticated attackers, with Subscriber-level access and above, to delete arbitrary subscriber records.

Technical Analysis

REMEDIATION: Update to version 2.2.1, or a newer patched version --- IDENTIFIER: CWE-862 (Missing Authorization) The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

External References

https://www.cve.org/CVERecord?id=CVE-2025-14441 https://www.wordfence.com/threat-intel/vulnerabilities/id/48f5a44d-d01f-4c41-98da-7c1f6c65c254

CVSS Vector

4.3

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityNone

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