CVE-2026-92212: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in jetmonsters JetFormBuilder — Dynamic Blocks Form Builder
The JetFormBuilder — Dynamic Blocks Form Builder plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via 'jfb_xss' (URL Query Variable) Parameter via Calculated Field in all versions up to, and including, 3.6.5.3 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. Exploitation requires the targeted page to host a form configured with both a URL Query Variable preset field and a Calculated Field that references it, which are standard plugin features.
AI Analysis
Technical Summary
CVE-2026-92212 describes a reflected Cross-Site Scripting vulnerability in the JetFormBuilder — Dynamic Blocks Form Builder WordPress plugin. The flaw exists in all versions up to 3.6.5.3 due to improper neutralization of input in calculated fields that reference URL query variables. An attacker can inject malicious scripts via the 'jfb_xss' URL parameter, which are then executed when a user visits a page hosting a form configured with both a URL Query Variable preset field and a Calculated Field referencing it. This vulnerability requires user interaction (clicking a crafted link) and affects unauthenticated users.
Potential Impact
Successful exploitation allows an attacker to execute arbitrary scripts in the context of the victim's browser session on the affected site. This can lead to information disclosure, session hijacking, or other client-side impacts. The vulnerability does not affect availability and requires user interaction. The CVSS 3.1 base score is 6.1 (medium severity), reflecting network attack vector, low attack complexity, no privileges required, user interaction required, and partial confidentiality and integrity impact.
Mitigation Recommendations
No explicit patch or fix information is provided in the input data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, administrators should consider disabling or avoiding use of URL Query Variable preset fields combined with Calculated Fields in forms or apply manual input sanitization and output escaping if possible.
CVE-2026-92212: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in jetmonsters JetFormBuilder — Dynamic Blocks Form Builder
Description
The JetFormBuilder — Dynamic Blocks Form Builder plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via 'jfb_xss' (URL Query Variable) Parameter via Calculated Field in all versions up to, and including, 3.6.5.3 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. Exploitation requires the targeted page to host a form configured with both a URL Query Variable preset field and a Calculated Field that references it, which are standard plugin features.
CVSS v3.1
Score 6.1medium
Affected software
jetmonsters
JetFormBuilder — Dynamic Blocks Form Builder
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-92212 describes a reflected Cross-Site Scripting vulnerability in the JetFormBuilder — Dynamic Blocks Form Builder WordPress plugin. The flaw exists in all versions up to 3.6.5.3 due to improper neutralization of input in calculated fields that reference URL query variables. An attacker can inject malicious scripts via the 'jfb_xss' URL parameter, which are then executed when a user visits a page hosting a form configured with both a URL Query Variable preset field and a Calculated Field referencing it. This vulnerability requires user interaction (clicking a crafted link) and affects unauthenticated users.
Potential Impact
Successful exploitation allows an attacker to execute arbitrary scripts in the context of the victim's browser session on the affected site. This can lead to information disclosure, session hijacking, or other client-side impacts. The vulnerability does not affect availability and requires user interaction. The CVSS 3.1 base score is 6.1 (medium severity), reflecting network attack vector, low attack complexity, no privileges required, user interaction required, and partial confidentiality and integrity impact.
Mitigation Recommendations
No explicit patch or fix information is provided in the input data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, administrators should consider disabling or avoiding use of URL Query Variable preset fields combined with Calculated Fields in forms or apply manual input sanitization and output escaping if possible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-09-15T18:19:57.878Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ab61cb5f7a7c5410676d529
Added to database: 09/25/2026, 07:03:17 UTC
Last enriched: 09/25/2026, 07:18:47 UTC
Last updated: 09/26/2026, 02:47:23 UTC
Views: 17
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