How severe is CVE-2026-15782?

Medium severity. CVSS v3 base score is 4.9 out of 10.

XSS in Smub Wpforms – Ai Form Builder For Wordpress Contact Forms, Payment Survey Form, Quiz & More

CVE-2026-15782

The WPForms – AI Form Builder for WordPress – Contact Forms, Payment Forms, Survey Form, Quiz & More plugin for WordPress is vulnerable to Stored Cross-Site Scripting via OptinMonster Integration data-sitekey Attribute in Post Content in a…

Vulnerability class: XSS (Cross-Site Scripting)

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N.

Affected products

Smub Wpforms – Ai Form Builder For Wordpress Contact Forms, Payment Survey Form, Quiz & More — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2026-15782?: CVE-2026-15782 is a medium-severity vulnerability in Smub Wpforms – Ai Form Builder For Wordpress Contact Forms, Payment Survey Form, Quiz & More, classified under Cross-site Scripting. CVSS score: 4.9/10. Published 2026-07-21.
How severe is CVE-2026-15782?: Medium severity. CVSS v3 base score is 4.9 out of 10.