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CVE-2021-36833

MEDIUM 4.8 CVSS 3.1
Published
May 20, 2022
Last modified
June 17, 2026
NVD status
Analyzed
Reported by
audit@patchstack.com
Weakness
CWE-79
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Description

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

Affected WordPress components

  • MC4WP: Mailchimp for WordPress Plugin · mailchimp-for-wp
    Confirmed match Active
    From <= 4.8.6 (including) to 4.8.6 (including)
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • ibericode MC4WP: Mailchimp for WordPress — From <= 4.8.6 (including) to 4.8.6 (including)
  • ibericode mailchimp_for_wordpress — Up to and including 4.8.6

References

  • patchstack.com https://patchstack.com/database/vulnerability/mailchimp-for-wp/wordpress-mc4wp-plugin-4-8-6-authenticated-stored-cross-site-scripting-xss-vulnerability Third Party Advisory
  • wordpress.org https://wordpress.org/plugins/mailchimp-for-wp/#developers Product
  • nvd.nist.gov Official NVD record