The MailChimp Subscribe Form, Optin Builder, PopUp Builder, Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Form Field Values in all versions up to, and including, 4.3.3 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Metrics
Affected Vendors & Products
References
History
Mon, 03 Aug 2026 19:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Sun, 02 Aug 2026 21:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Umarbajwa
Umarbajwa mailchimp Subscribe Form, Optin Builder, Popup Builder, Form Builder Wordpress Wordpress wordpress |
|
| Vendors & Products |
Umarbajwa
Umarbajwa mailchimp Subscribe Form, Optin Builder, Popup Builder, Form Builder Wordpress Wordpress wordpress |
Sat, 01 Aug 2026 08:30:00 +0000
Status: PUBLISHED
Assigner: Wordfence
Published: 2026-08-01T07:49:51.938Z
Updated: 2026-08-03T18:58:05.886Z
Reserved: 2026-07-08T13:23:30.631Z
Link: CVE-2026-15052
Updated: 2026-08-03T18:58:00.902Z
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