PatchSiren cyber security CVE debrief
CVE-2026-92212 jetmonsters CVE debrief
The JetFormBuilder plugin for WordPress has a Reflected Cross-Site Scripting vulnerability via the 'jfb_xss' URL query variable parameter in calculated fields up to version 3.6.5.3. This issue allows unauthenticated attackers to inject web scripts into pages if a user can be tricked into performing an action like clicking a link. The vulnerability requires a specific form configuration with both a URL Query Variable preset field and a Calculated Field referencing it.
- Vendor
- jetmonsters
- Product
- JetFormBuilder — Dynamic Blocks Form Builder
- CVSS
- MEDIUM 6.1
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-09-25
- Original CVE updated
- 2026-09-25
- Advisory published
- 2026-09-25
- Advisory updated
- 2026-09-25
Who should care
Defenders responsible for WordPress installations with the JetFormBuilder plugin should assess exposure and prioritize verification and remediation efforts. This includes reviewing form configurations and ensuring proper input sanitization and output escaping.
Why it matters
CVE-2026-92212 is a Reflected Cross-Site Scripting vulnerability in the JetFormBuilder plugin for WordPress. Defenders should prioritize verification and remediation efforts to prevent potential XSS attacks. This involves checking for vulnerable versions, reviewing form configurations, and ensuring proper input sanitization and output escaping.
- Defenders must verify and update the JetFormBuilder plugin to mitigate potential XSS attacks.
- Review and adjust form configurations to prevent exploitation.
- Implement additional monitoring for suspicious activities related to the plugin.
Technical summary
The JetFormBuilder plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'jfb_xss' URL query variable parameter in calculated fields up to version 3.6.5.3. The vulnerability exists due to insufficient input sanitization and output escaping. This allows 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.
Defensive priority
Defenders should prioritize verifying and updating the JetFormBuilder plugin to mitigate potential XSS attacks. This involves checking for version 3.6.5.3 or earlier and ensuring proper input sanitization and output escaping.
Recommended defensive actions
- Verify and update the JetFormBuilder plugin to the latest version.
- Review form configurations for vulnerable preset fields and calculated fields.
- Implement additional input sanitization and output escaping for custom or third-party plugins.
- Check relevant monitoring, detection, and logs for exposed assets that need extra review.
- Track exceptions, retest remediated assets, and close the item only after evidence is documented.
- Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
- Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance.
Evidence notes
The CVE record and NVD detail provide information on the vulnerability. Additional details are available in source references from [email protected], including code snippets and configuration requirements for exploitation.
Sources and references
Verified primary and authoritative sources
-
CVE-2026-92212 CVE Program record
Publisher, destination, and source semantics verified
URL: https://www.cve.org/CVERecord?id=CVE-2026-92212
CVE Program - Official CVE Program record with source-provided CVE metadata.
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CVE-2026-92212 NVD vulnerability detail
Publisher, destination, and source semantics verified
URL: https://nvd.nist.gov/vuln/detail/CVE-2026-92212
NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.
Supplemental references
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Source reference
Unverified legacy reference
URL: https://plugins.trac.wordpress.org/browser/jetformbuilder/tags/3.6.5.3/assets/build/frontend/main.js
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Source reference
Unverified legacy reference
URL: https://plugins.trac.wordpress.org/browser/jetformbuilder/tags/3.6.5.3/includes/blocks/render/calculated-field-render.php
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Source reference
Unverified legacy reference
URL: https://plugins.trac.wordpress.org/browser/jetformbuilder/tags/3.6.5.3/includes/presets/sources/preset-source-query-var.php
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Source reference
Unverified legacy reference
URL: https://plugins.trac.wordpress.org/browser/jetformbuilder/tags/3.6.5.3/templates/fields/calculated-field.php
Methodology and review provenance
AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.