CVE-2017-18543 : Security Advisory and Response

The access control for email-based invitations in the invite-anyone plugin prior to version 1.3.16 of WordPress is not implemented correctly.

Understanding CVE-2017-18543

The invite-anyone plugin before version 1.3.16 for WordPress has incorrect access control for email-based invitations.

What is CVE-2017-18543?

The vulnerability in the invite-anyone plugin allows unauthorized access to email-based invitations in WordPress.

The Impact of CVE-2017-18543

This vulnerability could lead to unauthorized users gaining access to sensitive email-based invitations, potentially compromising user privacy and security.

Technical Details of CVE-2017-18543

The technical aspects of the CVE-2017-18543 vulnerability are as follows:

Vulnerability Description

The access control issue in the invite-anyone plugin allows unauthorized users to view email-based invitations.

Affected Systems and Versions

Product: WordPress
Vendor: N/A
Versions Affected: Prior to version 1.3.16

Exploitation Mechanism

Unauthorized users can exploit this vulnerability to access email-based invitations without proper authentication.

Mitigation and Prevention

To address CVE-2017-18543, follow these mitigation steps:

Immediate Steps to Take

Update the invite-anyone plugin to version 1.3.16 or newer.
Monitor user access to email-based invitations for any suspicious activity.

Long-Term Security Practices

Regularly update all WordPress plugins to their latest versions.
Implement strong access control mechanisms to prevent unauthorized access to sensitive data.

Patching and Updates

Apply patches and security updates promptly to ensure protection against known vulnerabilities.