Medium severity · published Nov 23, 2024
CVE-2024-11188
Formidable Forms – Contact Form Plugin, Survey, Quiz, Payment, Calculator Form & Custom Form Builder <= 6.16.1.2 - Reflected Cross-Site Scripting via Custom HTML Form Parameter
6.1
CVSS
0.4%
EPSS
No
On KEV
Description
The Formidable Forms – Contact Form Plugin, Survey, Quiz, Payment, Calculator Form & Custom Form Builder plugin for WordPress is vulnerable to POST-Based Reflected Cross-Site Scripting via the Custom HTML Form parameters in all versions up to, and including, 6.16.1.2 due to insufficient input sanitization and output escaping. 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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 34% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FF
Formidable Forms – Contact Form Plugin, Survey, Quiz, Payment, Calculator Form & Custom Form Builder · strategy11team
through 6.16.1.2 · source: vendor
FF
Formidable Forms · Strategy11
before 6.16.2 · source: NVD
Affected product
FF
Formidable Forms – Contact Form Plugin, Survey, Quiz, Payment, Calculator Form & Custom Form Builder
strategy11team
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-11188
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-11188
Product
https://plugins.trac.wordpress.org/browser/formidable/tags/6.16/classes/helpers/FrmFieldsHelper.php#L158
Third Party Advisory
https://www.wordfence.com/threat-intel/vulnerabilities/id/da84aa80-7ef6-4846-870d-07bf88652329?source=cve
More from Formidable Forms – Contact Form Plugin, Survey, Quiz, Payment, Calculator Form & Custom Form Builder
7.5
CVE-2026-2890
Formidable Forms <= 6.28 - Missing Authorization to Unauthenticated Payment Integrity Bypass via PaymentIntent Reuse
6.1
CVE-2017-20192
Formidable Form Builder < 2.05.03 - Unauthenticated Stored Cross-Site Scripting
5.4
CVE-2024-6725
Formidable Forms <= 6.11.1 - Authenticated (Subscriber+) Stored Cross-Site Scripting
5.3
CVE-2026-2888
Formidable Forms <= 6.28 - Unauthenticated Payment Amount Manipulation via 'item_meta' Parameter
5.3
CVE-2017-20194
Formidable Form Builder < 2.05.03 - Unauthenticated Information Disclosure