CVE-2026-1454 Responsive Contact Form Builder & Lead Generation Plugin <= 2.0.1 - Unauthenticated Stored Cross-Site Scripting
Unauthenticated attackers can inject scripts via form submissions that execute when administrators view leads, potentially leading to account takeover.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-1454?
CVE-2026-1454 is a high-severity cross-site scripting vulnerability in themehunk Lead Form Builder & Contact Form, published on 11 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-79
Which versions are affected by CVE-2026-1454?
How do I fix CVE-2026-1454?
No fix has been published for CVE-2026-1454 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-1454 being exploited?
There is no known exploitation of CVE-2026-1454 in the wild and no public exploit code.
Sources
Also known as GHSA-29p4-76cr-8wvw.