Name: CVE-2026-27536: Improper Neutralization of Input During Web Page Generation
Creator: Rapid7
Published: 2026-08-13T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-27536, CWE-79, CVSS 7.1, EPSS 0.00251

Unauthenticated Cross Site Scripting (XSS) in MailChimp Subscribe Forms <= 4.3.3 versions.

CVSS Details

CVSS 3.1 Base Score: 7.1
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Mailchimp Subscribe Sm Plugin	—	Update mailchimp-subscribe-sm plugin to version 4.3.4, or a newer patched version	Aug 14, 2026	Aug 11, 2026

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CVSS Details

Covered by Rapid7

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