CVE-2026-19859 JetFormBuilder < 3.6.5.2 - Unauthenticated Arbitrary Shortcode Execution via 'status' Parameter
Unauthenticated attackers can execute arbitrary shortcodes on pages displaying forms due to improper sanitization of the status parameter.
- 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-2026-19859?
CVE-2026-19859 is a medium-severity code injection vulnerability in Unknown JetFormBuilder, published on 6 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The JetFormBuilder WordPress plugin before 3.6.5.2 does not sanitize a request parameter before rendering it as message content, allowing unauthenticated users to execute arbitrary shortcodes registered on the site on any page displaying a form. Escaping is applied to that content before a later shortcode-expansion pass rather than after it, so the escaping can be bypassed.
Weakness: CWE-74
Which versions are affected by CVE-2026-19859?
How do I fix CVE-2026-19859?
No fix has been published for CVE-2026-19859 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-19859 being exploited?
There is no known exploitation of CVE-2026-19859 in the wild and no public exploit code.
Sources
Also known as GHSA-7cfv-gw32-qgh7.