Post SMTP – Complete SMTP Solution with Logs, Alerts, Backup SMTP & Mobile App <= 3.6.0 - Missing Authorization to Account Takeover via Unauthenticated Email Log Disclosure

Missing Authorization
CVE CVE-2025-11833
CVSS Critical (9.8)
Publicly Published October 31, 2025
Last Updated November 1, 2025
Researcher netranger
Description

The Post SMTP – Complete SMTP Solution with Logs, Alerts, Backup SMTP & Mobile App plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the __construct function in all versions up to, and including, 3.6.0. This makes it possible for unauthenticated attackers to read arbitrary logged emails sent through the Post SMTP plugin, including password reset emails containing password reset links, which can lead to account takeover.

References

1 affected software package

Software Type Plugin
Software Slug post-smtp (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 3.6.0
Patched Version
  • 3.6.1
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