XSS Vulnerability in WPMU DEV Forminator Plugin for WordPress
CVE-2026-116858

4.3MEDIUM

Key Information:

Vendor

WordPress
Status
Forminator
Vendor
CVE Published:
3 November 2026

What is CVE-2026-116858?

The WPMU DEV Forminator plugin is susceptible to a Cross-Site Scripting (XSS) vulnerability due to improper neutralization of script-related HTML tags in web pages. This flaw allows attackers to inject malicious scripts, leading to potential code execution on the affected WordPress sites. All versions up to 1.58.3 are impacted, emphasizing the need for users to update to the latest version to maintain security.

Affected Version(s)

Forminator 0 <= 1.58.3

References

https://patchstack.com/database/wordpress/plugin/forminat...
vdb-entry

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Filip Kowalski | Patchstack Bug Bounty Program
.