vulnerability
WordPress Plugin: popup-builder-block: CVE-2025-14441: Missing Authorization
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:L/Au:N/C:N/I:P/A:N) | Jan 5, 2026 | Jan 6, 2026 | Jan 7, 2026 |
Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:P/A:N)
Published
Jan 5, 2026
Added
Jan 6, 2026
Modified
Jan 7, 2026
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.
Solution
popup-builder-block-plugin-cve-2025-14441
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