Description
The MC4WP: Mailchimp for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the form response message post meta fields (e.g., -text_subscribed-, -text_error-) in all versions up to, and including, 4.12.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
CVSS 6.4EPSS 0.317%Risk 0.66
View source- Published
- 2026-08-22 14:16:33
- Affected versions
- <=4.12.0
- Type
- Web application
- Last modified
- 2026-08-24 16:41:13
- Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N