Server-Side Request Forgery in Webmention Plugin for WordPress

CVE-2026-0688

What is CVE-2026-0688?

The Webmention plugin for WordPress contains a Server-Side Request Forgery vulnerability affecting all versions up to 5.6.2. This vulnerability allows attackers with Subscriber-level access or higher to leverage the 'Tools::read' function to make unauthorized web requests to external endpoints. By exploiting this flaw, attackers can obtain or manipulate sensitive data from internal services, effectively compromising the integrity and confidentiality of the web application. It's crucial for site administrators to update to the latest version to mitigate this risk.

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