CVEvulnerability
CVE-2026-87917
6.1 MEDIUM
Official page ↗
- Status
- Deferred
- Published
- 2026-09-19
- Last modified
- 2026-09-21
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.1 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- Weaknesses
- CWE-79
Description
The MC4WP: Mailchimp for WordPress plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via 'data' Dynamic Content Tag in all versions up to, and including, 4.14.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
Related
Weakness · CWE (1)
- CWE-79 Improper Neutralization of Input During Web Page Generation weakness
References
- https://plugins.trac.wordpress.org/browser/mailchimp-for-wp/tags/4.14.0/includes/class-dynamic-content-tags.php#L127 plugins.trac.wordpress.org
- https://plugins.trac.wordpress.org/browser/mailchimp-for-wp/tags/4.14.0/includes/forms/class-form-tags.php#L109 plugins.trac.wordpress.org
- https://plugins.trac.wordpress.org/browser/mailchimp-for-wp/tags/4.14.0/includes/forms/class-form-tags.php#L57 plugins.trac.wordpress.org
- https://plugins.trac.wordpress.org/changeset?reponame=&new=3689679%40mailchimp-for-wp%2Ftags%2F4.14.1&old=3655905%40mailchimp-for-wp%2Ftags%2F4.14.0 plugins.trac.wordpress.org
- https://plugins.trac.wordpress.org/changeset?reponame=&new=3698084%40mailchimp-for-wp%2Ftags%2F4.14.1&old=3655905%40mailchimp-for-wp%2Ftags%2F4.14.0 plugins.trac.wordpress.org
- https://www.wordfence.com/threat-intel/vulnerabilities/id/ee4f837a-d0b5-48df-8c96-2a294985612e?source=cve www.wordfence.com