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CVE-2024-6521 Details

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 dropdown fields 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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:4.8 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

CNA: [email protected]CVSS-B:4.4 MEDIUMVector:CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://plugins.trac.wordpress.org/changeset/3125227/	CVE	Patch
https://wordpress.org/plugins/fluentform/#developers	CVE	Release Notes
https://www.wordfence.com/threat-intel/vulnerabilities/id/be7c6cfa-6cac-46d2-8eb9-9fef8049f6e7?source=cve	CVE	Third Party Advisory
https://plugins.trac.wordpress.org/changeset/3125227/	[email protected]	Patch
https://wordpress.org/plugins/fluentform/#developers	[email protected]	Release Notes
https://www.wordfence.com/threat-intel/vulnerabilities/id/be7c6cfa-6cac-46d2-8eb9-9fef8049f6e7?source=cve	[email protected]	Third Party Advisory

see all 6 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-79	Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')	[email protected]
CWE-79	Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')	[email protected]

Affected Products

Product	Versions
fluentforms contact form	< 5.1.20
CPE cpe:2.3:a:fluentforms:contact_form::::::wordpress::* Remediation No remediation found in references.

Change History

6 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Apr 8, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
Aug 27, 2024	Initial Analysis	[email protected]
Jul 27, 2024	New CVE Received	[email protected]