{"id":"CVE-2026-118167","title":"MC4WP: Mailchimp for WordPress < 4.15.0 - Unauthenticated Subscription Audience Override","summary":"The MC4WP: Mailchimp for WordPress plugin before 4.15.0 does not validate that the Mailchimp audience a sign-up form or bundled integration subscribes a visitor to matches the audience configured by the site owner, allowing unauthenticat…","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","cvssSource":"adp","cwe":["CWE-863"],"product":"MC4WP: Mailchimp for WordPress","affected":["mc4wp_mailchimp_for_wordpress < 4.15.0"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-11-06T11:46:53.025620Z"},"published":"2026-11-06","updated":"2026-11-06","sourceUpdated":"2026-11-06T11:59:40.340Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-118167","references":[{"url":"https://wpscan.com/vulnerability/11752539-1dc8-4adb-a680-ce7ecaaff4d1/"}],"tags":["cve.org"],"ingestedAt":"2026-11-06T06:46:27.273Z","epss":0.00214,"epssPercentile":0.11809,"slug":"CVE-2026-118167","body":"## Overview\n\nThe MC4WP: Mailchimp for WordPress plugin before 4.15.0 does not validate that the Mailchimp audience a sign-up form or bundled integration subscribes a visitor to matches the audience configured by the site owner, allowing unauthenticated visitors to subscribe arbitrary email addresses to any other audience in the site's connected Mailchimp account.\n\n## Affected\n\n- `mc4wp_mailchimp_for_wordpress < 4.15.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":235122,"id":"CVE-2026-118167","ts":1793969520446,"field":"cvss","old":null,"new":"5.3"},{"seq":235121,"id":"CVE-2026-118167","ts":1793969520446,"field":"severity","old":"none","new":"medium"}]}