CVE-2026-97342 json
JetFormBuilder <= 3.6.5.4 - Unauthenticated Stored Cross-Site Scripting via 'choice' Post Meta via Insert/Update Post Action
published 2026-10-02 38 d ago modified 2026-10-03 36 d ago also EUVD-2026-91250
- cvss
- 7.2
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 15%
- public exploits
- 0
- none known
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.
Patch / fix
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 36 d ago
Exploit prediction
0.24% chance of exploitation in the next 30 days, higher than 15% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.2 | 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
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
- github.com /Crocoblock/jetformbuilder/commit/534c2ce996408d1f9b5a9fba165348a7cd38bccc#diff-f60e64a78a96f00501af389dc21606
- wordfence.com /threat-intel/vulnerabilities/id/84857045-833f-44fb-ada0-1e0f4eb84a52?source=cve
- plugins.trac.wordpress.org /browser/jetformbuilder/tags/3.6.5.4/modules/option-field/blocks/select/block-template.php#L131
- plugins.trac.wordpress.org /browser/jetformbuilder/tags/3.6.5.4/includes/form-handler.php#L85
- plugins.trac.wordpress.org /browser/jetformbuilder/tags/3.6.5.4/includes/classes/tools.php#L574
- plugins.trac.wordpress.org /browser/jetformbuilder/tags/3.6.5.4/modules/actions-v2/insert-post/properties/post-meta-property.php#L152
- plugins.trac.wordpress.org /browser/jetformbuilder/tags/3.6.5.4/includes/generators/get-from-db.php#L226
Sources
- CVE List CVE-2026-97342
- NVD CVE-2026-97342
Fencer Vulns 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.