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CVE-2026-100179

MEDIUM 6.1 CVSS 3.1
Published
October 1, 2026
Last modified
October 1, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-79
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Description

The Calculated Fields Form – AI Form Builder for WordPress – Contact, Payment, Quote, Quiz & More plugin for WordPress is vulnerable to Reflected DOM-Based Cross-Site Scripting via the 'x (any URL parameter consumed by the form's calculated equation)' parameter in all versions up to, and including, 5.5.1.3 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. Exploitation requires the target site to have a public form configured with a Select2-enabled dropdown whose choices are populated via a calculated equation that pipes a URL parameter through GETURLPARAMETER() into setChoices({texts:[...]}); given that configuration, exploitation requires only a single crafted link.

Affected WordPress components

  • Calculated Fields Form – AI Form Builder for WordPress – Contact, Payment, Quote, Quiz & More Plugin · calculated-fields-form
    Confirmed match Active
    Up to and including 5.5.1.3
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • codepeople Calculated Fields Form – AI Form Builder for WordPress – Contact, Payment, Quote, Quiz & More — Up to and including 5.5.1.3

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/calculated-fields-form/tags/5.5.1.2/js/fields-public/08_fbuilder.fdropdown.js#L240
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/calculated-fields-form/tags/5.5.1.2/js/fields-public/08_fbuilder.fdropdown.js#L84
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/calculated-fields-form/tags/5.5.1.2/js/modules/08_url/public/01_url.js
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?reponame=&old=3713574%40calculated-fields-form&new=3713574%40calculated-fields-form
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/215a9f92-e922-4fa3-a4ac-83af788f4e55?source=cve
  • nvd.nist.gov Official NVD record