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CVE-2024-11326

MEDIUM 6.1 CVSS 3.1
Published
December 3, 2024
Last modified
June 17, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-79
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Description

The Campaign Monitor Forms by Optin Cat 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, 2.5.7. 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.

Affected WordPress components

  • Campaign Monitor Forms by Optin Cat Plugin · campaign-monitor-wp
    Confirmed match Active
    Up to and including 2.5.7
    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

  • fatcatapps Campaign Monitor Forms by Optin Cat — Up to and including 2.5.7

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/campaign-monitor-wp/trunk/includes/eoi-subscribers.php#L353
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset/3198560/campaign-monitor-wp/trunk/includes/eoi-subscribers.php
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/95ebb2ad-91a8-4a0d-ba91-f417943545b4?source=cve
  • nvd.nist.gov Official NVD record