Cross-site scripting in jetmonsters JetFormBuilder — Dynamic Blocks Form Builder
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
The JetFormBuilder — Dynamic Blocks Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'choice' Post Meta via Insert/Update Post Action in all versions up to, and including, 3.6.5.4 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. The injected payload is submitted via the unauthenticated wp_ajax_nopriv_jet_form_builder_submit endpoint, stored verbatim into post meta through the Insert/Update Post action, and later rendered unescaped by the Select Field block template when the get_from_db option generator copies raw meta values into option value attributes and label content.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| jetmonsters | JetFormBuilder — Dynamic Blocks Form Builder | up to 3.6.5.4 | — | No fix listed | CNA |
- JetFormBuilder — Dynamic Blocks Form Builder Vendorjetmonsters Affected up to 3.6.5.4 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-97342
- 2026-10-03 Alias added: GHSA-h3qq-hvw6-cjjf
- 2026-10-03 CISA SSVC decision points changed
References
Other 7
- https://www.wordfence.com/threat-intel/vulnerabilities/id/84857045-833f-44fb-ada0-1e0f4eb84a52?source=cve
- https://plugins.trac.wordpress.org/browser/jetformbuilder/tags/3.6.5.4/modules/option-field/blocks/select/block-template.php#L131
- https://plugins.trac.wordpress.org/browser/jetformbuilder/tags/3.6.5.4/includes/form-handler.php#L85
- https://plugins.trac.wordpress.org/browser/jetformbuilder/tags/3.6.5.4/includes/classes/tools.php#L574
- https://plugins.trac.wordpress.org/browser/jetformbuilder/tags/3.6.5.4/modules/actions-v2/insert-post/properties/post-meta-property.php#L152
- https://plugins.trac.wordpress.org/browser/jetformbuilder/tags/3.6.5.4/includes/generators/get-from-db.php#L226
- https://github.com/Crocoblock/jetformbuilder/commit/534c2ce996408d1f9b5a9fba165348a7cd38bccc#diff-f60e64a78a96f00501af389dc216067c8335cd91ee7296e6c7d960f89dae7d20R547-R551
More jetmonsters vulnerabilities
- TI-2024-04107 Hotel Booking Lite <= 4.11.1 - Unauthenticated PHP Object Injection CVSS 3.1CRITICAL 9.8
- TI-2026-10932 JetFormBuilder <= 3.6.2 - Unauthenticated Privilege Escalation via '_jet_engine_booking_form_id' Parameter CVSS 3.1CRITICAL 9.8
- TI-2024-03126 Timetable and Event Schedule by MotoPress <= 2.4.11 - Authenticated (Contributor+) SQL Injection CVSS 3.1CRITICAL 9.9
- TI-2026-25053 WordPress JetFormBuilder plugin <= 3.5.6.1 - Remote Code Execution (RCE) vulnerability CVSS 3.1CRITICAL 9.9
- TI-2025-40603 WordPress Hotel Booking Lite plugin <= 5.2.3 - Remote Code Execution (RCE) vulnerability CVSS 3.1CRITICAL 9.1
- TI-2025-22116 WordPress Restaurant Menu by MotoPress plugin <= 2.4.4 - Local File Inclusion vulnerability CVSS 3.1HIGH 8.8
Sources
- CVE-2026-97342 · CVE Program
- CVE-2026-97342 · NVD
- FIRST EPSS
- GHSA-h3qq-hvw6-cjjf · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences