CVE-2019-15858 : Security Advisory and Response

WordPress plugin "Woody ad snippets" version 2.2.5 and earlier allows unauthenticated options import, leading to XSS payload storage and remote code execution.

Understanding CVE-2019-15858

In the "Woody ad snippets" plugin for WordPress version 2.2.5 and earlier, a vulnerability exists that enables the import of options without authentication, potentially resulting in remote code execution.

What is CVE-2019-15858?

The vulnerability in the "Woody ad snippets" plugin for WordPress version 2.2.5 and earlier allows attackers to store a cross-site scripting (XSS) payload, leading to remote code execution.

The Impact of CVE-2019-15858

Exploiting this vulnerability can result in unauthorized access to the WordPress site, potential data theft, and the execution of malicious code.

Technical Details of CVE-2019-15858

The technical details of this CVE include:

Vulnerability Description

The file admin/includes/class.import.snippet.php in the "Woody ad snippets" plugin for WordPress version 2.2.5 and earlier allows unauthenticated options import, enabling the storage of an XSS payload for remote code execution.

Affected Systems and Versions

Affected System: WordPress
Affected Plugin Version: 2.2.5 and earlier

Exploitation Mechanism

The vulnerability can be exploited by an attacker to import options without authentication, allowing the storage of a malicious XSS payload that can lead to remote code execution.

Mitigation and Prevention

To mitigate the risks associated with CVE-2019-15858, consider the following steps:

Immediate Steps to Take

Update the "Woody ad snippets" plugin to the latest version.
Implement strong authentication mechanisms for WordPress admin access.
Regularly monitor and audit plugins for security vulnerabilities.

Long-Term Security Practices

Conduct regular security training for website administrators to raise awareness of potential threats.
Employ web application firewalls to detect and block malicious traffic.

Patching and Updates

Stay informed about security updates for WordPress plugins and apply patches promptly to address known vulnerabilities.