CVE-2026-92212 json
JetFormBuilder <= 3.6.5.3 - Reflected Cross-Site Scripting via 'jfb_xss' (URL Query Variable) Parameter via Calculated Field
published last mo. modified last mo. also EUVD-2026-86534
- cvss
- 6.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 17%
- public exploits
- 0
- none known
Summary
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.
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- last mo.
Exploit prediction
0.25% chance of exploitation in the next 30 days, higher than 17% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected products
- jetmonsters JetFormBuilder — Dynamic Blocks Form Builder
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/37a72530-35d0-4fe8-82c6-50c87f61e731?source=cve
- plugins.trac.wordpress.org /browser/jetformbuilder/tags/3.6.5.3/assets/build/frontend/main.js
- plugins.trac.wordpress.org /browser/jetformbuilder/tags/3.6.5.3/includes/presets/sources/preset-source-query-var.php#L21
- plugins.trac.wordpress.org /browser/jetformbuilder/tags/3.6.5.3/includes/blocks/render/calculated-field-render.php#L42
- plugins.trac.wordpress.org /browser/jetformbuilder/tags/3.6.5.3/templates/fields/calculated-field.php#L31
- plugins.trac.wordpress.org /changeset?reponame=&old=3707612%40jetformbuilder&new=3707612%40jetformbuilder
Sources
- CVE List CVE-2026-92212
- NVD CVE-2026-92212
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.