CVE-2025-14441

EUVD-2026-1075

06.01.2026, 05:15

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.

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	Primary	5.3 MEDIUM	NETWORK	LOW	NONE	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Wordfence	CNA	5.3 MEDIUM				CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Awaiting analysis

This vulnerability is currently awaiting analysis.

Base Score

CVSS 3.x

EPSS Score

Percentile: 13%

Common Weakness Enumeration

CWE-862 - Missing Authorization
The software does not perform an authorization check when an actor attempts to access a resource or perform an action.

References

https://plugins.trac.wordpress.org/browser/popup-builder-block/tags/2.2.0/includes/Routes/Subscribers.php#L64

https://plugins.trac.wordpress.org/browser/popup-builder-block/tags/2.2.0/includes/Routes/Subscribers.php#L77

https://plugins.trac.wordpress.org/browser/popup-builder-block/trunk/includes/Routes/Subscribers.php#L77

https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3421671%40popup-builder-block&new=3421671%40popup-builder-block&sfp_email=&sfph_mail=

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