---
id: "CVE-2026-120561"
kind: "vulnerability"
aliases: ["CVE-2026-120561"]
title: "JetFormBuilder WordPress plugin: unauthenticated users can alter JetEngine option values"
severity: "medium"
cvss: 5.3
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["jetengine", "jetformbuilder", "package", "wordpress"]
not_affected_if: ["default-config", "jetengine-not-installed", "no-update-options-action"]
published_at: "2026-11-03T05:18:33+00:00"
first_seen_at: "2026-11-03T05:48:53+00:00"
updated_at: "2026-11-03T05:49:59+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-120561", "first_seen_at": "2026-11-03T05:48:53+00:00"}]
---

# JetFormBuilder WordPress plugin: unauthenticated users can alter JetEngine option values

The JetFormBuilder plugin for WordPress lacks a capability check in its Update Options action, so unauthenticated visitors can change JetEngine Options Page values. The attack only works when an administrator has set up a form using the Update Options post-submission action.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check whether the JetFormBuilder plugin is installed and at a version up to and including `3.6.2` (Plugins screen in WordPress admin).
- Check whether JetEngine is installed and active alongside it.
- Look for any form configured with the "Update Options" post-submission action in JetFormBuilder.

## Timeline

- 2026-11-03T05:48:53+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-120561

## From the sources

The JetFormBuilder — Dynamic Blocks Form Builder plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'do_action' function in the 'Update_Options' action class in all versions up to, and including, 3.6.2. This makes it possible for unauthenticated attackers to modify JetEngine Options Page values when an administrator has configured a form with the "Update Options" post-submission action. The vulnerability requires that both JetFormBuilder and JetEngine are installed and active, and that an administrator has specifically configured a form with the Update Options action.

---

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