CVE-2017-1001000 : What You Need to Know

WordPress REST API vulnerability in versions 4.7.x up to 4.7.2 allows attackers to modify pages via a specific request.

Understanding CVE-2017-1001000

This CVE relates to a security vulnerability in the WordPress REST API that could be exploited by malicious actors to alter pages on a WordPress site.

What is CVE-2017-1001000?

The register_routes feature in the REST API of WordPress versions 4.7.x up to 4.7.2 lacks the requirement for an integer identifier. This flaw enables external attackers to manipulate any page by sending a crafted request to wp-json/wp/v2/posts with a numeric and non-numeric value.

The Impact of CVE-2017-1001000

The vulnerability allows unauthorized individuals to modify arbitrary pages on a WordPress site, potentially leading to content manipulation and unauthorized access.

Technical Details of CVE-2017-1001000

This section provides more in-depth technical insights into the vulnerability.

Vulnerability Description

The register_routes function in wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php in WordPress 4.7.x before 4.7.2 does not enforce the need for an integer identifier, enabling remote attackers to alter pages via specific requests.

Affected Systems and Versions

Affected versions: WordPress 4.7.x up to 4.7.2

Exploitation Mechanism

Attackers can exploit this vulnerability by sending a crafted request to wp-json/wp/v2/posts with a numeric value followed by a non-numeric value, allowing them to modify pages.

Mitigation and Prevention

Protecting systems from this vulnerability requires immediate actions and long-term security practices.

Immediate Steps to Take

Update WordPress to version 4.7.2 or later to patch the vulnerability.
Monitor website activity for any unauthorized changes.

Long-Term Security Practices

Regularly update WordPress and plugins to the latest versions.
Implement strong authentication mechanisms to prevent unauthorized access.

Patching and Updates

Apply security patches promptly to ensure protection against known vulnerabilities.