What is CVE-2026-18324?

CVE-2026-18324 is a high-severity vulnerability in Wpmudev Forminator Forms – Contact Form, Payment Form & Custom Builder, classified under Cross-site Scripting. CVSS score: 7.2/10. Published 2026-08-28.

How severe is CVE-2026-18324?

High severity. CVSS v3 base score is 7.2 out of 10.

XSS in Wpmudev Forminator Forms – Contact Form, Payment Form & Custom Builder

CVE-2026-18324

The Forminator Forms – Contact Form, Payment Form & Custom Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Rich-Text Textarea Field in all versions up to, and including, 1.57.0.1 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. Exploitation requires that the targeted Textarea field has the Rich-Text editor option enabled.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.003 (22.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N.

Affected products

Wpmudev Forminator Forms – Contact Form, Payment Form & Custom Builder

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2026-18324?: CVE-2026-18324 is a high-severity vulnerability in Wpmudev Forminator Forms – Contact Form, Payment Form & Custom Builder, classified under Cross-site Scripting. CVSS score: 7.2/10. Published 2026-08-28.
How severe is CVE-2026-18324?: High severity. CVSS v3 base score is 7.2 out of 10.