CVE-2026-101324: Fluent Forms <= 6.2.14 - Reflected Cross-Site Scripting via '{get.*}' Editor SmartCode Parameter
The Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'any attacker-chosen name matching the {get.NAME} placeholder (PoC uses 'proof')' parameter in all versions up to, and including, 6.2.14 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. Exploitation requires a site administrator to have configured a Custom HTML field on a published form containing a {get.} SmartCode inside a URL-accepting attribute such as iframe src or a href — a documented Fluent Forms feature.
Affected Software
Event History
Frequently Asked Questions
Which sites are exposed to this issue?
Exposure requires a published form with a Custom HTML field that uses a {get.*} SmartCode inside a URL-accepting attribute, such as an iframe src or an href. Sites without that specific configuration are not described as exploitable by the available information.
What does an attacker need to exploit it?
The attacker does not need authentication, but must supply an attacker-chosen parameter name matching the {get.NAME} placeholder and convince a user to perform an action such as clicking a crafted link. Script execution depends on the vulnerable SmartCode being used in the affected Custom HTML context.
How can I check whether my forms are affected or reduce exposure before patching?
Review published forms for Custom HTML fields containing {get.*} SmartCodes in href, iframe src, or other URL-accepting attributes. Remove those SmartCodes from such attributes, or remove the affected Custom HTML field from publication, to eliminate the described exploitation condition.