CVE-2019-20203 : Security Advisory and Response

The Postie plugin 1.9.40 for WordPress contains a vulnerability that allows attackers to publish posts by spoofing email details.

Understanding CVE-2019-20203

This CVE involves a security issue in the Postie plugin for WordPress that enables unauthorized post publication through email spoofing.

What is CVE-2019-20203?

The vulnerability in the Postie plugin version 1.9.40 for WordPress permits attackers to create posts by manipulating the From information in email messages.

The Impact of CVE-2019-20203

Exploiting this vulnerability can lead to unauthorized posts being published on WordPress sites, potentially spreading false information or malicious content.

Technical Details of CVE-2019-20203

The technical aspects of the CVE-2019-20203 vulnerability in the Postie plugin for WordPress.

Vulnerability Description

The flaw in the Postie plugin version 1.9.40 allows remote attackers to publish posts by falsifying the From details in email messages.

Affected Systems and Versions

Product: Postie plugin for WordPress
Vendor: N/A
Version: 1.9.40

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating the email message's From information to create and publish posts on WordPress sites.

Mitigation and Prevention

Steps to mitigate and prevent the CVE-2019-20203 vulnerability in the Postie plugin.

Immediate Steps to Take

Disable the Postie plugin if not essential for site functionality
Monitor for any unauthorized posts on WordPress sites
Implement email security measures to prevent spoofing

Long-Term Security Practices

Regularly update plugins and WordPress core to patch vulnerabilities
Educate users on email security best practices to prevent spoofing attacks

Patching and Updates

Ensure the Postie plugin is updated to the latest version to address and fix the vulnerability.