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.

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Fixes

Solution

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History

Wed, 16 Sep 2026 18:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-74
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 16 Sep 2026 15:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-94

Wed, 16 Sep 2026 06:45:00 +0000

Type Values Removed Values Added
Description 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.
Title Formidable Forms < 6.35 - Unauthenticated Arbitrary Shortcode Execution via [entry_key] Custom HTML Token
References
Metrics cvssV3_1

{'score': 4.8, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: WPScan

Published:

Updated: 2026-09-16T17:40:30.151Z

Reserved: 2026-08-14T09:46:32.169Z

Link: CVE-2026-19857

cve-icon Vulnrichment

Updated: 2026-09-16T17:39:18.779Z

cve-icon NVD

Status : Deferred

Published: 2026-09-16T07:16:36.720

Modified: 2026-09-16T20:25:29.240

Link: CVE-2026-19857

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-16T15:30:11Z

Weaknesses