CVE-2026-118166
Received Received - Intake

Arbitrary Shortcode Execution in MC4WP Mailchimp for WordPress

Publication date: 2026-11-06

Last updated on: 2026-11-06

Assigner: WPScan

Description
The MC4WP: Mailchimp for WordPress WordPress plugin before 4.15.0 does not prevent request-derived values in its dynamic content tags from being processed as shortcodes when a form is embedded with its block, allowing unauthenticated visitors to execute arbitrary registered shortcodes with attacker-chosen attributes. This requires the site owner to have added a request-derived tag to the form content and to embed the form with the block rather than the classic shortcode.

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Published
2026-11-06
Last Modified
2026-11-06
Generated
2026-11-06
EPSS Evaluated
N/A
NVD
CVE-2026-118166
EUVD
EUVD-2026-117972

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
Unknown MC4WP: Mailchimp for WordPress 0

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CWE ID Description
CWE-UNKNOWN

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