CVE-2026-1781
MC4WP: Mailchimp for WordPress <= 4.11.1 - Missing Authorization to Unauthenticated Arbitrary Subscription Deletion
概要
MC4WP: Mailchimp for WordPress <= 4.11.1 - Missing Authorization to Unauthenticated Arbitrary Subscription Deletion
原文の説明
取得元が公開している説明をそのまま載せています (多くは英語)。
The MC4WP: Mailchimp for WordPress plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 4.11.1. This is due to the plugin trusting the _mc4wp_action POST parameter without validation, allowing unauthenticated attackers to force the form to process unsubscribe actions instead of subscribe actions. This makes it possible for unauthenticated attackers to arbitrarily unsubscribe any email address from the connected Mailchimp audience via the _mc4wp_action parameter, granted they can obtain the form ID (which is publicly exposed in the HTML source).
参照URL
- advisory github.com
- advisory nvd.nist.gov
- patch github.com
- web cwe.mitre.org
- web plugins.trac.wordpress.org
- web plugins.trac.wordpress.org
- web plugins.trac.wordpress.org
- web plugins.trac.wordpress.org
- web wordfence.com