POST SMTP Mailer – Email log, Delivery Failure Notifications and Best Mail SMTP for WordPress <= 2.8.7 - Authorization Bypass via type connect-app API

9.8
Authorization Bypass Through User-Controlled Key
CVE CVE-2023-6875
CVSS 9.8 (Critical)
Publicly Published January 10, 2024
Last Updated January 22, 2024
Researcher Ulyses Saicha

Description

The POST SMTP Mailer – Email log, Delivery Failure Notifications and Best Mail SMTP for WordPress plugin for WordPress is vulnerable to unauthorized access of data and modification of data due to a type juggling issue on the connect-app REST endpoint in all versions up to, and including, 2.8.7. This makes it possible for unauthenticated attackers to reset the API key used to authenticate to the mailer and view logs, including password reset emails, allowing site takeover. CVE-2023-52233 appears to be a duplicate of this issue.

Wordfence blocked 29,795 attacks targeting this vulnerability in the past 24 hours.

References

Share

Vulnerability Details for Post SMTP – WordPress SMTP Plugin with Email Logs and Mobile App for Failure Notifications – Gmail SMTP, Office 365, Brevo, Mailgun, Amazon SES and more

Software Type Plugin
Software Slug post-smtp (view on wordpress.org)
Patched? Yes
Remediation Update to version 2.8.8, or a newer patched version
Affected Version
  • <= 2.8.7
Patched Version
  • 2.8.8

Did you know Wordfence Intelligence provides free personal and commercial API access to our comprehensive WordPress vulnerability database, along with a free webhook integration to stay on top of the latest vulnerabilities added and updated in the database? Get started today!

Learn more

Want to get notified of the latest vulnerabilities that may affect your WordPress site?
Install Wordfence on your site today to get notified immediately if your site is affected by a vulnerability that has been added to our database.

Get Wordfence

The Wordfence Intelligence WordPress vulnerability database is completely free to access and query via API. Please review the documentation on how to access and consume the vulnerability data via API.

Documentation