CVE-2026-119479

JetFormBuilder — Dynamic Blocks Form Builder <= 3.6.7.1 - Unauthenticated Arbitrary Shortcode Execution

2026-10-30 00:00
Askar

Strategic Overview

Status
Patched in 3.6.8
Affected Plugin
JetFormBuilder — Dynamic Blocks Form Builder
Affected Version
<= 3.6.7.1
CVSS
7.2High
Weakness type
CWE-94 · Improper Control of Generation of Code
CVE
CVE-2026-119479
View all JetFormBuilder — Dynamic Blocks Form Builder vulnerabilities

At a glance

CVE-2026-119479 is a high-severity Improper Control of Generation of Code vulnerability in the JetFormBuilder WordPress plugin, affecting versions <= 3.6.7.1. It carries a CVSS score of 7.2 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 3.6.8; sites on affected versions should update now. Disclosed October 2026, reported by Askar.

Vulnerability Overview

The JetFormBuilder — Dynamic Blocks Form Builder plugin for WordPress is vulnerable to Arbitrary Shortcode Execution in all versions up to, and including, 3.6.7.1. This is due to missing tokenization of user-supplied macro values before do_shortcode() execution, allowing submitted field values to be interpreted as shortcode syntax. This makes it possible for unauthenticated attackers to inject arbitrary shortcodes through form field values that are executed on the server when processed by Send Email, Call Webhook, Redirect To Page, or Media field settings.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user.

CWE-94: Improper Control of Generation of Code

JetFormBuilder <= 3.6.7.1 carries this weakness at do_shortcode(), and reaching it takes no account at all. Code injection means input from a request reaches a language construct that evaluates code, so the attacker's text is executed rather than treated as data.

The injected code runs with the web server's privileges, giving the attacker the same access to the database and filesystem as WordPress itself. For JetFormBuilder the fix is 3.6.8: builds <= 3.6.7.1 are affected, anything from 3.6.8 onward is not.

Remediation

Update to version 3.6.8, or a newer patched version

How does WordSec protect against this?

Requests carrying this pattern arrive without a session, so nothing upstream of the firewall gets a chance to reject them: WordSec's web application firewall inspects request payloads before WordPress loads them. Classes like this one can leave something behind, so the staged malware scanner is the second half: it looks for dropped files and modified code rather than for the request that created them. None of that substitutes for the fix: JetFormBuilder 3.6.8 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Scanner
  • Login Security

External References

https://www.cve.org/CVERecord?id=CVE-2026-119479https://www.wordfence.com/threat-intel/vulnerabilities/id/a4cbc1b4-edaa-4a55-b9ed-82b72d19eec0https://nvd.nist.gov/vuln/detail/CVE-2026-119479

Related records

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