CVE-2026-97342 Cross-site scripting in JetFormBuilder — Dynamic Blocks Form Builder
Unauthenticated attackers can inject arbitrary scripts via post meta, leading to stored XSS when pages are viewed.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-97342?
CVE-2026-97342 is a high-severity cross-site scripting vulnerability in jetmonsters JetFormBuilder — Dynamic Blocks Form Builder, published on 2 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-79
Which versions are affected by CVE-2026-97342?
How do I fix CVE-2026-97342?
No fix has been published for CVE-2026-97342 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-97342 being exploited?
There is no known exploitation of CVE-2026-97342 in the wild and no public exploit code.
Sources
Also known as GHSA-h3qq-hvw6-cjjf.