TI-2021-06891 Aliases CVE-2021-24608 GHSA-76gr-jrfv-xpv4

Formidable Form Builder < 5.0.07 - Admin+ Stored Cross-Site Scripting

LOW 23CWE-79Published 2021-10-25 · Updated 2024-08-03

Key facts

Attack vector: Network
Privileges required: High
User interaction: Required
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · None
Fix status: Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

The Formidable Form Builder – Contact Form, Survey & Quiz Forms Plugin for WordPress plugin before 5.0.07 does not sanitise and escape its Form's Labels, allowing high privileged users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed

Why it matters now

EPSS 0.00676 52nd percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Fixed Formidable Form Builder – Contact Form, Survey & Quiz Forms Plugin for WordPress (Unknown): 5.0.07

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Unknown	Formidable Form Builder – Contact Form, Survey & Quiz Forms Plugin for WordPress	5.0.07 to before 5.0.07	5.0.07	Patch available	CNA

Formidable Form Builder – Contact Form, Survey & Quiz Forms Plugin for WordPress VendorUnknown Affected 5.0.07 to before 5.0.07 Fixed in 5.0.07 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:strategy11:formidable_form_builder::::::wordpress::*	before 5.0.07	Vulnerable	strategy11team

cpe:2.3:a:strategy11:formidable_form_builder:*:*:*:*:*:wordpress:*:* Versions before 5.0.07 Vulnerable ·strategy11team

Remediation

Fix · CNA Formidable Form Builder – Contact Form, Survey & Quiz Forms Plugin for WordPress (Unknown) Fixed in 5.0.07

Timeline

2026-10-02 Threatist record created from CVE-2021-24608
2026-10-03 Alias added: GHSA-76gr-jrfv-xpv4

References

Exploit 1

https://wpscan.com/vulnerability/75305ea8-730b-4caf-a3c6-cb94adee683c

Patch 1

https://plugins.trac.wordpress.org/changeset/2609911

TI-2023-00774 Formidable Forms < 6.1 - IP Spoofing CVSS 3.1MEDIUM 6.5
TI-2021-07166 Formidable Form Builder < 4.09.05 - Unauthenticated Stored Cross-Site Scripting CVSS 3.1CRITICAL 9.6
TI-2019-11851 The formidable plugin before 4.02.01 for WordPress has unsafe deserialization. CVSS 3.1CRITICAL 9.8
TI-2017-14258 Formidable Form Builder < 2.05.03 - Unauthenticated Stored Cross-Site Scripting CVSS 3.1HIGH 8.3
TI-2023-10041 WordPress Formidable Forms Plugin <= 5.5.6 is vulnerable to Cross Site Request Forgery (CSRF) CVSS 3.1HIGH 8.8
TI-2023-06236 Formidable Forms <= 6.7 - HTML Injection CVSS 3.1MEDIUM 6.5

See all 8 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences