CVE-2018-18872 : Vulnerability Insights and Analysis

The Kieran O'Shea Calendar plugin for WordPress, version 1.3.11 or earlier, is vulnerable to Stored Cross-Site Scripting (XSS) through specific parameters.

Understanding CVE-2018-18872

This CVE identifies a Stored XSS vulnerability in the Kieran O'Shea Calendar plugin for WordPress.

What is CVE-2018-18872?

The Kieran O'Shea Calendar plugin for WordPress, versions 1.3.11 and below, is susceptible to Stored Cross-Site Scripting (XSS) attacks.

The Impact of CVE-2018-18872

Exploiting this vulnerability can lead to unauthorized access, data theft, and potential compromise of the affected WordPress websites.

Technical Details of CVE-2018-18872

The following technical aspects are associated with this CVE:

Vulnerability Description

The vulnerability arises from improper input validation in the "event_title" parameter and category name during category creation within specific URIs.

Affected Systems and Versions

Product: Kieran O'Shea Calendar plugin
Vendor: N/A
Versions affected: 1.3.11 and earlier

Exploitation Mechanism

The vulnerability can be exploited by manipulating the "event_title" parameter in the "wp-admin/admin.php?page=calendar" add action or by altering the category name during category creation at the "wp-admin/admin.php?page=calendar-categories" URI.

Mitigation and Prevention

Protect your system from CVE-2018-18872 with these measures:

Immediate Steps to Take

Update the Kieran O'Shea Calendar plugin to version 1.3.12 or later.
Implement input validation and sanitization for user-generated content.
Monitor and restrict access to sensitive areas of the WordPress admin panel.

Long-Term Security Practices

Regularly audit and review plugins for security vulnerabilities.
Educate users on safe practices to prevent XSS attacks.

Patching and Updates

Stay informed about security patches and updates for WordPress plugins.