What the vulnerability does
01Description
The Nonaki – Drag and Drop Email Template builder and Newsletter plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'nonaki' shortcode in all versions up to, and including, 1.0.11. This is due to insufficient input sanitization and output escaping on user supplied custom field values that are retrieved and rendered by the shortcode. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Explanation of Vulnerability in Simple Terms
02Summary
The Nonaki email template builder plugin for WordPress contains a stored cross-site scripting (XSS) vulnerability in versions up to 1.0.11. An authenticated user with low privileges can inject malicious scripts that execute in the browsers of other site users, including administrators. The vulnerability has scope change, meaning the impact extends beyond the vulnerable component itself.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that run in other users' browsers, potentially stealing session tokens or performing actions as those users.
Potential impact on your site
04Site Impact
Authenticated users can inject code affecting other site visitors and admins; site data and user sessions at risk.
Conditions required to exploit
05Prerequisites
Attacker must have a WordPress user account with low-level privileges (e.g., subscriber or contributor role).
Key dates
06Disclosure timeline
November 11, 2025
CVE published
April 8, 2026
Record updated
