CVE-2026-119183
JetFormBuilder <= 3.6.8 - Unauthenticated Stored Cross-Site Scripting via '%META::key%' Macro via Post Meta
Description
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.
INFO
Published Date :
Nov. 7, 2026, 12:17 p.m.
Last Modified :
Nov. 7, 2026, 12:17 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | MITRE-CVE | ||||
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update the JetFormBuilder plugin to version 3.6.9 or later.
- Review and sanitize all user-supplied input.
- Ensure proper output escaping is implemented.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-119183.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-119183 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-119183
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-119183 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-119183 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Nov. 07, 2026
Action Type Old Value New Value Added Description 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. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N Added CWE CWE-79 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/119xxx/CVE-2026-119183.json">CVE-2026-119183</a> Added Reference https://plugins.trac.wordpress.org/browser/jetformbuilder/tags/3.6.7/includes/blocks/render/calculated-field-render.php#L56 Added Reference https://plugins.trac.wordpress.org/browser/jetformbuilder/tags/3.6.7/modules/actions-v2/insert-post/insert-post-action.php#L53 Added Reference https://plugins.trac.wordpress.org/browser/jetformbuilder/tags/3.6.7/modules/actions-v2/insert-post/properties/post-meta-property.php#L157 Added Reference https://plugins.trac.wordpress.org/browser/jetformbuilder/tags/3.6.7/templates/fields/calculated-field.php#L31 Added Reference https://plugins.trac.wordpress.org/changeset/3788241/jetformbuilder/trunk/includes/blocks/render/calculated-field-render.php Added Reference https://www.wordfence.com/threat-intel/vulnerabilities/id/3b3d2e0d-ce2a-48cd-a36f-92979335fd71?source=cve