CVE · Medium

CVE-2023-0816 — Formidable Forms – WordPress Form Builder for Contact Forms, Calculators, Quizzes & More [formidable] < 6.1

CVE Vulnerability Type Severity Affected Fixed in Published Status
CVE-2023-0816 Formidable Forms – WordPress Form Builder for Contact Forms, Calculators, Quizzes & More [formidable] < 6.1 Authentication Bypass by Spoofing Medium 6.5 < 6.1 6.1 2023-03-06

CVE-2023-0816

The Formidable Forms plugin through version 6.0.1 contains an IP spoofing vulnerability that arises from trusting unverified HTTP headers like Client-Ip and CF-CONNECTING-IP when determining a user's IP address during form submissions. An unauthenticated attacker can exploit this flaw by forging these headers to spoof their IP address, allowing them to circumvent the plugin's spam prevention mechanisms. The vulnerability affects all versions up to and including 6.0.1, with fixes available in version 6.1 and later.

Based on public CVE data (MITRE/NVD).

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