CVE-2024-9210

MC4WP: Mailchimp Top Bar <= 1.6.0 - Reflected Cross-Site Scripting

Published Oct 2, 2024 CVSS 3.1 · 6.1 Medium EPSS < 1% KEV · Not listed
Description
The MC4WP: Mailchimp Top Bar plugin for WordPress is vulnerable to Reflected Cross-Site Scripting due to the use of add_query_arg without appropriate escaping on the URL in all versions up to, and including, 1.6.0. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2024-49793 The MC4WP: Mailchimp Top Bar plugin for WordPress is vulnerable to Reflected Cross-Site Scripting due to the use of add_query_arg without appropriate escaping on the URL in all versions up to, and including, 1.6.0. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
History
Type Values Removed Values Added
First Time appeared Ibericode
Ibericode mailchimp Top Bar
CPEs cpe:2.3:a:ibericode:mailchimp_top_bar:*:*:*:*:*:wordpress:*:*
Vendors & Products Ibericode
Ibericode mailchimp Top Bar
Type Values Removed Values Added
First Time appeared Dvankootem
Dvankootem mailchimp Top Bar
CPEs cpe:2.3:a:dvankootem:mailchimp_top_bar:*:*:*:*:*:*:*:*
Vendors & Products Dvankootem
Dvankootem mailchimp Top Bar
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description The MC4WP: Mailchimp Top Bar plugin for WordPress is vulnerable to Reflected Cross-Site Scripting due to the use of add_query_arg without appropriate escaping on the URL in all versions up to, and including, 1.6.0. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
Title MC4WP: Mailchimp Top Bar <= 1.6.0 - Reflected Cross-Site Scripting
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Wordfence
Published
Updated
Apr 8, 2026, 5:16 PM
Reserved
Sep 26, 2024, 3:18 PM
Status
Analyzed
Published
Oct 2, 2024, 8:15 AM
Modified
Jun 17, 2026, 8:24 AM