CVE-2026-92144 Forminator Forms <= 1.57.2 - Unauthenticated Stored Cross-Site Scripting via 'postdata-1[post-custom]' Parameter
Unauthenticated attackers can inject arbitrary scripts via a form parameter, leading to code execution or account takeover when victims view the page.
- 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-2026-92144?
CVE-2026-92144 is a high-severity cross-site scripting vulnerability in wpmudev Forminator Forms – Contact Form, Payment Form & Custom Form Builder, published on 1 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Forminator Forms – Contact Form, Payment Form & Custom Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'postdata-1[post-custom]' Parameter in all versions up to, and including, 1.57.2 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 required form submission nonce is freely obtainable by unauthenticated users via the publicly accessible wp_ajax_nopriv_forminator_get_nonce endpoint, making the full attack chain exploitable without any authentication or prior account.
Weakness: CWE-79
Which versions are affected by CVE-2026-92144?
How do I fix CVE-2026-92144?
No fix has been published for CVE-2026-92144 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-2026-92144 being exploited?
There is no known exploitation of CVE-2026-92144 in the wild and no public exploit code.
Sources
Also known as GHSA-pg8f-q234-6933.