CVE-2026-1454
HIGHCVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Lifecycle Timeline
2Description
The Responsive Contact Form Builder & Lead Generation Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 2.0.1 via form field submissions. This is due to insufficient input sanitization in the lfb_lead_sanitize() function which omits certain field types from its sanitization whitelist, combined with an overly permissive wp_kses() filter at output time that allows onclick attributes on anchor tags. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever an administrator views the lead entries in the WordPress dashboard.
Analysis
The Responsive Contact Form Builder & Lead Generation Plugin for WordPress through version 2.0.1 fails to properly sanitize form field submissions, allowing unauthenticated attackers to inject malicious scripts that execute in the administrator dashboard when viewing lead entries. The vulnerability stems from incomplete input validation in the sanitization function combined with overly permissive output filtering that permits onclick attributes on links. …
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Remediation
Within 24 hours: Inventory all WordPress installations and identify those using this plugin and their versions. Within 7 days: Disable the vulnerable plugin or migrate forms to an alternative solution; implement Web Application Firewall (WAF) rules to sanitize form submissions. …
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External POC / Exploit Code
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