CVE-2026-17037: Kirki <= 6.2.0 - Unauthenticated Stored Cross-Site Scripting via 'comment' Parameter
The Kirki – Freeform Page Builder, Website Builder & Customizer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘comment’ parameter in all versions up to, and including, 6.2.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Affected Software
Event History
Frequently Asked Questions
Who can exploit this issue, and what access do they need?
An attacker does not need authentication, user privileges, or user interaction to submit the malicious input. Exploitation requires the attacker to be able to send a value through the affected comment parameter.
What is the impact after malicious content is submitted?
The injected script is stored in a page and runs when someone accesses that injected page. The vulnerability can affect confidentiality and integrity, while no direct availability impact is indicated.
Which installations are affected?
All versions of the Kirki plugin up to and including 6.2.0 are affected. The provided data does not identify configuration requirements or a workaround for installations that cannot immediately update.