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Home - Vulnerability NotesPrint
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CERT-In Vulnerability Note CIVN-2025-0164
Broken Access Control Vulnerability in WordPress Plugin Post SMTP

Original Issue Date:August 04, 2025

Severity Rating: HIGH

Software Affected

  • WordPress Plugin Post SMTP versions prior to 3.3.0.

Overview

A vulnerability has been reported in WordPress Plugin Post SMTP, which could be exploited by an attacker to obtain sensitive information and bypass security restrictions on the targeted system.

Target Audience:
All organizations and individuals using WordPress Plugin Post SMTP.

Risk Assessment:
High risk of unauthorized access to sensitive data.

Impact Assessment:
Potential for data theft and account takeover.

Description

Post SMTP is a popular WordPress plugin designed to improve the deliverability of emails sent from your WordPress website. It replaces the default WordPress wp_mail() function with SMTP (Simple Mail Transfer Protocol) connection to send emails more reliably.

This vulnerability exists in Post SMTP plugin due to a broken access control mechanism in its REST API endpoints.

Successful exploitation of this vulnerability could allow an attacker to obtain sensitive information and bypass security restrictions on the targeted system.

Solution

Apply appropriate updates as mentioned by the Vendor:
https://wordpress.org/plugins/post-smtp/advanced/

Vendor Information

WordPress
https://wordpress.org/plugins/post-smtp/

References

 
https://www.bleepingcomputer.com/news/security/post-smtp-plugin-flaw-exposes-200k-wordpress-sites-to-hijacking

CVE Name
CVE-2025-24000

Disclaimer

The information provided herein is on "as is" basis, without warranty of any kind.

Contact Information

Email: info@cert-in.org.in
Phone: +91-11-22902657

Postal address

Indian Computer Emergency Response Team (CERT-In)
Ministry of Electronics and Information Technology
Government of India
Electronics Niketan
6, CGO Complex, Lodhi Road,
New Delhi - 110 003
India

 
Indian Computer Emergency Response Team - CERT-In, Ministry of Electronics and Information Technology, Government of India.
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