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CVE-2024-6520

MEDIUM 4.4 CVSS 3.1
Published
July 27, 2024
Last modified
June 17, 2026
NVD status
Modified
Reported by
security@wordfence.com
Weakness
CWE-79
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N

Description

The Contact Form Plugin by Fluent Forms for Quiz, Survey, and Drag & Drop WP Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via custom error message in all versions up to, and including, 5.1.19 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

Affected WordPress components

  • Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder Plugin · fluentform
    Confirmed match Active
    Up to and including 5.1.19
    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

  • techjewel Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder — Up to and including 5.1.19
  • web-dorado wp_form_builder — Up to and including 5.1.19
  • fluentforms contact_form — Before 5.1.20

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset/3125227/ Patch
  • wordpress.org https://wordpress.org/plugins/fluentform/#developers Release Notes
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/0a30d35c-9883-4b0f-83a2-494401c45d8e?source=cve Third Party Advisory
  • nvd.nist.gov Official NVD record