CVE-2025-14441
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:Jan 6, 2026
Last Modified:Apr 21, 2026
EPS:Jan 6, 2026
EPSS Score:0.00042
CVSS Score:4.3
Affected Products
Vendor
Product
Action
Vendor
Roxnor
Product
Popup Builder
Roxnor
Popup Builder
Vendor
Wordpress
Product
Wordpress
Wordpress
Wordpress
Exploits
No exploit reference
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
Related CVEs
References
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
