CVE-2026-119183highCWE-79

CVE-2026-119183: high-severity vulnerability in jetmonsters JetFormBuilder — Dynamic Blocks…

JetFormBuilder <= 3.6.8 - Unauthenticated Stored Cross-Site Scripting via '%META::key%' Macro via Post Meta

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21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.2epss 0.4%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Affected products
jetmonsters · JetFormBuilder — Dynamic Blocks Form Builder
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