CVE-2021-36833 MEDIUM

CVE-2021-36833: WordPress MC4WP plugin <= 4.8.6 - Authenticated Stored Cross-Site Scripting (XSS) vulnerability

Vendor Ibericode
Product MC4WP: Mailchimp for WordPress
Weakness CWE-79 · XSS
Published May 20, 2022
Last update April 28, 2026
View on NVD All CVEs

CVSS base score

4.8/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

What the vulnerability does

01Description

Authenticated (admin or higher user role) Stored Cross-Site Scripting (XSS) vulnerability in ibericode's MC4WP plugin <= 4.8.6 at WordPress.

Key dates

02Disclosure timeline

May 20, 2022 CVE published
April 28, 2026 Record updated