Description
The Sendmachine for WordPress plugin for WordPress is vulnerable to authorization bypass via the 'manage_admin_requests' function in all versions up to, and including, 1.0.20. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to overwrite the plugin's SMTP configuration, which can be leveraged to intercept all outbound emails from the site (including password reset emails).
References5
- plugins.trac.wordpress.org/browser/sendmachine/tags/1.0.20/incl…
- plugins.trac.wordpress.org/browser/sendmachine/tags/1.0.20/send…
- plugins.trac.wordpress.org/browser/sendmachine/tags/1.0.20/send…
- plugins.trac.wordpress.org/changeset/3511578
- www.wordfence.com/threat-intel/vulnerabilities/id/7889e071-84a8…
Metrics
- CVSS 3.1
-
9.8
CRITICAL
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 1% percentile: 48 · as of 13 November 2026
- CWE
- CWE-862
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.