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Input validation vulnerability in POST SMTP – The #1 WordPress SMTP Plugin with Advanced Email Logging and Delivery Failure Notifications 2.8.7

  • Severity: high-risk
  • Status: Fixed
  • Publication: January 2, 2024

The POST SMTP Mailer – Email log, Delivery Failure Notifications and Best Mail SMTP for WordPress plugin has a security vulnerability that affects all versions up to, and including, 2.8.7. This vulnerability allows unauthenticated attackers to inject malicious code into pages on the website. When a user visits an infected page, the code will be executed. This is due to the plugin not properly sanitizing and escaping user input.

Detected in:

POST SMTP – The #1 WordPress SMTP Plugin with Advanced Email Logging and Delivery Failure Notifications fixed vulnerable versions:
Post SMTP – The Complete WP SMTP Plugin with Email Logs and Mobile app for email Failure Notifications fixed vulnerable versions:
Post SMTP – The WordPress SMTP Plugin with Email Logs and Mobile App for Email Failure Notifications fixed vulnerable versions:
Post SMTP – WordPress SMTP Plugin with Email Logs and Mobile App for Failure Notifications – Gmail SMTP, Office 365, Brevo, Mailgun, Amazon SES and more fixed vulnerable versions:
Post SMTP – WP SMTP Plugin with Email Logs & Mobile App for Failure Alerts – Any SMTP Plus Gmail SMTP, Office 365, Brevo, Mailgun, Amazon SES, Postmark fixed vulnerable versions:
Post SMTP – WP SMTP Plugin with Email Logs and Mobile App for Failure Notifications – Gmail SMTP, Office 365, Brevo, Mailgun, Amazon SES and more fixed vulnerable versions:

This information is sourced from www.wpvulnerability.com. An open-source database of vulnerabilities maintained by the community. Help us out by submitting vulnerabilities!

Version compare shows which versions have a vulnerability. For example: >= 2.2.8 <= 2.2.21 means:

> from 2.2.8
= including 2.2.8 & 2.2.21
< to 2.2.21

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