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.
Published: 2026-09-16
Score: 4.8 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

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'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: WPScan

Published:

Updated: 2026-09-16T06:30:05.888Z

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

Link: CVE-2026-19857

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

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

Modified: 2026-09-16T07:16:36.720

Link: CVE-2026-19857

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

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

Weaknesses