Arbitrary Shortcode Execution Vulnerability in Forminator Forms Plugin for WordPress
CVE-2026-101335

6.5MEDIUM

Key Information:

Vendor

WordPress
Status
Forminator Forms – Contact Form, Payment Form & Custom Form Builder
Vendor
CVE Published:
16 October 2026

What is CVE-2026-101335?

The Forminator Forms plugin for WordPress is susceptible to arbitrary shortcode execution due to flawed handling of input parameters in versions up to 1.58.1. This vulnerability arises from the processing of user-controlled data in the plugin’s notification body. An unauthenticated attacker can exploit this flaw by submitting a quiz response that includes the {quiz_result} merge tag in the notification template. This leads to the execution of arbitrary shortcodes present on the WordPress site, enabling attackers to inject malicious content or disclose sensitive information depending on the shortcodes exposed by other installed plugins and themes.

Affected Version(s)

Forminator Forms – Contact Form, Payment Form & Custom Form Builder 0 <= 1.58.1

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/forminator/tag...
https://plugins.trac.wordpress.org/browser/forminator/tag...

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Theklis
Jakub Herman
.