CVE-2019-16523 : Security Advisory and Response

A vulnerability in the Events Manager plugin for WordPress allows for Stored XSS attacks to occur due to improper data encoding and insertion.

Understanding CVE-2019-16523

The vulnerability in the Events Manager plugin version 5.9.5 for WordPress enables attackers to execute Stored XSS attacks.

What is CVE-2019-16523?

The vulnerability arises from the plugin incorrectly encoding and inserting data into the attribute map_style of specific shortcodes within the plugin.

The Impact of CVE-2019-16523

The vulnerability permits attackers to execute Stored XSS attacks, potentially compromising the security and integrity of WordPress websites utilizing the Events Manager plugin.

Technical Details of CVE-2019-16523

The technical aspects of the CVE-2019-16523 vulnerability are outlined below.

Vulnerability Description

The Events Manager plugin, up to version 5.9.5, for WordPress is susceptible to Stored XSS due to improper encoding and insertion of data into the attribute map_style of certain shortcodes.

Affected Systems and Versions

Product: Events Manager plugin
Vendor: N/A
Versions affected: 5.9.5

Exploitation Mechanism

The vulnerability allows attackers to inject malicious code through the locations_map and events_map shortcodes, exploiting the improper data handling within the plugin.

Mitigation and Prevention

Protecting systems from CVE-2019-16523 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update the Events Manager plugin to a secure version that addresses the vulnerability.
Consider disabling the plugin until a patch is available to prevent exploitation.

Long-Term Security Practices

Regularly monitor for plugin updates and security advisories.
Implement web application firewalls and security plugins to enhance website security.

Patching and Updates

Apply patches and updates provided by the plugin developer promptly to mitigate the vulnerability and enhance security.