Local Syndication WordPress Plugin Server-Side Request Forgery Vulnerability

A server-side request forgery (SSRF) vulnerability has been identified in the Local Syndication plugin for WordPress, affecting all versions through 1.5a. The vulnerability arises from the use of 'wp_remote_get()' instead of 'wp_safe_remote_get()'. This flaw allows authenticated attackers with Contributor-level access and above to send web requests to arbitrary locations from the web application. Exploitation of this vulnerability could be used to query and modify information from internal services, scan internal networks, and access resources that should not be available from external networks.

Impact

Exploitation of this vulnerability could lead to unauthorized access to internal services and networks, allowing attackers to manipulate information or resources that should be protected.

Reproduction

To reproduce this vulnerability, an authenticated user with Contributor-level access or higher can use the '[syndicate_local]' shortcode, including a 'url' parameter that points to an internal or private IP address. The absence of 'wp_safe_remote_get()' allows the request to be processed, creating a server-side request forgery condition.

Remediation

No known patch is available. It is recommended to review the vulnerability details and consider uninstalling the affected plugin.