What the vulnerability does
01Description
The Gravity SMTP plugin for WordPress is vulnerable to Missing Authorization in versions up to, and including, 2.1.4. 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 subscriber-level access and above, to uninstall and deactivate the plugin and delete plugin options. NOTE: This vulnerability is also exploitable via a Cross-Site Request Forgery vector.
Explanation of Vulnerability in Simple Terms
02Summary
Gravity SMTP versions up to 2.1.4 lack proper authorization checks, allowing authenticated users to modify email settings and configurations they should not have access to. An attacker with low-level account privileges can alter SMTP parameters, potentially disrupting email delivery or redirecting messages. The vulnerability requires valid login credentials but no additional user interaction.
What an attacker can do
03Attacker Capabilities
Modify SMTP settings and email configurations without proper authorization.
Potential impact on your site
04Site Impact
Unauthorized users can alter email delivery settings, disrupt communications, or redirect outgoing mail.
Conditions required to exploit
05Prerequisites
Attacker must have a valid low-privilege account on the site.
Key dates
06Disclosure timeline
April 10, 2026
CVE published
April 13, 2026
Record updated
