CVE-2026-11592
MediumCVSS 4.3Exploitation Probability (EPSS)
Low risk19th percentile — higher than 19% of all known CVEs
Summary
The Email Subscribers & Newsletters plugin for WordPress up to version 5.9.27 is vulnerable to authorization bypass. Authenticated attackers with contributor-level access or higher can overwrite mail settings, create audience lists, insert contacts, create and overwrite newsletters, add workflows, and send mass emails to arbitrary recipients.
Risk Assessment
The organization is at risk of unauthorized mass email sending, which can damage domain reputation, lead to mail server blacklisting, and expose contact data.
Recommendation
Immediately update the Email Subscribers & Newsletters plugin to the latest available version that fixes this vulnerability.
Original NVD description (English source)
The Email Subscribers & Newsletters – Email Marketing, Post Notifications & Newsletter Plugin for WordPress plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 5.9.27. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with contributor-level access and above, to overwrite plugin mail settings (from name and from email address), create audience lists, insert arbitrary contacts into those lists, create and overwrite newsletter broadcasts and post notifications, add workflows, and queue and dispatch mass email to arbitrary recipients.