CVE-2026-19857

The Formidable Forms WordPress plugin before 6.35 does not prevent a request-derived value from reaching the WordPress shortcode parser when it substitutes a supported token into a form's custom HTML, allowing unauthenticated visitors to have arbitrary shortcodes, with attacker-chosen attributes, executed server-side on any page displaying an affected form.

Score

CVSS 3.1 4.8 Medium

Status

Deferred - contact@wpscan.com

Published

2026-09-16

Last modified

2026-09-16

Weaknesses

CWE-74

Affected products

• Formidable Forms (Unknown)

References

• https://wpscan.com/vulnerability/5ff439f4-aa99-4198-b908-0cf098656cf7/