blogsafe.org My Downloads

BlogSafe.org

WordPress CVEs

Search and review WordPress-related vulnerability records.

← Back to CVE list

CVE-2026-103909

MEDIUM 6.1 CVSS 3.1
Published
October 3, 2026
Last modified
October 6, 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 'arbitrary (whichever names the admin bound via url.<name>)' parameter in all versions up to, and including, 5.5.1.5 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 targeted site to host a publicly accessible form in which an administrator has configured at least two fields with url.<name> predefined values that are used together in a concatenation equation — a plausible but not universal configuration.

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 5.5.1.5
    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 5.5.1.5

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/calculated-fields-form/tags/5.5.1.5/js/fbuilder-pro-public.jquery.js#L1288
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/calculated-fields-form/tags/5.5.1.5/js/fbuilder-pro-public.jquery.js#L167
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/calculated-fields-form/tags/5.5.1.5/js/fields-public/fbuilder.fcalculated.js#L389
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/calculated-fields-form/tags/5.5.1.5/js/fields-public/fbuilder.fcalculated.js#L416
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/calculated-fields-form/tags/5.5.1.5/js/modules/08_url/public/01_url.js#L140
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?reponame=&old=3724009%40calculated-fields-form&new=3724009%40calculated-fields-form
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/fd61aa6f-79c5-4f81-964e-e71412d45b35?source=cve
  • nvd.nist.gov Official NVD record