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.
Metrics
Affected Vendors & Products
References
History
Sun, 20 Sep 2026 02:45:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Dvankooten
Dvankooten mc4wp: Mailchimp For Wordpress Wordpress Wordpress wordpress |
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| Vendors & Products |
Dvankooten
Dvankooten mc4wp: Mailchimp For Wordpress Wordpress Wordpress wordpress |
Sat, 19 Sep 2026 14:30:00 +0000
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| Metrics |
ssvc
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Sat, 19 Sep 2026 08:00:00 +0000
Status: PUBLISHED
Assigner: Wordfence
Published: 2026-09-19T07:43:20.939Z
Updated: 2026-09-19T13:51:20.441Z
Reserved: 2026-09-09T15:56:01.475Z
Link: CVE-2026-87917
Updated: 2026-09-19T13:50:28.679Z
Status : Deferred
Published: 2026-09-19T08:16:54.917
Modified: 2026-09-21T13:33:33.387
Link: CVE-2026-87917
No data.