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.
| Software Type | Plugin |
|---|---|
| Software Slug |
popup-builder-block
View on wordpress.org
|
| CVE | CVE-2025-14441 |
| Patched Versions |
2.2.1
|
| Affected Versions |
*-2.2.0
|
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