CVE-2026-19857 — Formidable Forms < 6.35 - Unauthenticated Arbitrary Shortcode Execution via [entry_key] Custom HTML Token

CVE-2026-19857

Formidable Forms < 6.35 - Unauthenticated Arbitrary Shortcode Execution via [entry_key] Custom HTML Token PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Unknown / Formidable Forms	affected 6.34 before 6.35

CWE

No CWE identifiers supplied.

References

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

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.