CVE-2026-119183 · Package
NO FIX YET · SEE WHAT TO DO
The JetFormBuilder WordPress form plugin does not sanitize a form field mapped to a post meta key, so an unauthenticated visitor can save script code that runs in pages. A visitor who opens an affected page runs the attacker's script in their browser session.
first public Nov 7, 2026 · 1 source
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Sites running the JetFormBuilder plugin up to and including 3.6.8 that have a public Insert Post form writing to a post meta key and a Calculated Field referencing that key with %META::key%. Sites without that form configuration, or without the plugin, are not exposed.
Not affected if default-config, no-public-insert-post-form, plugin-not-installed
Who cares jetformbuilder, self-hosted, wordpress
3.6.8 and below.The JetFormBuilder — Dynamic Blocks Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the '<form field mapped to a post meta key, e.g. lst_cost>' parameter in all versions up to, and including, 3.6.8 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. Exploitation requires the target site to have configured a public Insert Post form writing to a post meta key and a Calculated Field whose formula references that key via the %META::key% macro, after which a single unauthenticated POST is sufficient to persist the payload.
This page as .md · .json · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
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