CVE-2025-14441

Description

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.

PUBLISHED Reserved 2025-12-10 | Published 2026-01-06 | Updated 2026-01-06 | Assigner Wordfence

Problem types

CWE-862 Missing Authorization

Product status

Timeline

Credits

Athiwat Tiprasaharn finder

References

www.wordfence.com/...-d01f-4c41-98da-7c1f6c65c254?source=cve

plugins.trac.wordpress.org/...ncludes/Routes/Subscribers.php

plugins.trac.wordpress.org/...ncludes/Routes/Subscribers.php

plugins.trac.wordpress.org/...ncludes/Routes/Subscribers.php

plugins.trac.wordpress.org/...er-block&sfp_email=&sfph_mail=

cve.org (CVE-2025-14441)

nvd.nist.gov (CVE-2025-14441)

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