CVE-2026-111831: WP ManageNinja FluentForm broken access control in form handling

CVE-2026-111831 · Severity: medium · CVSS 5.3 · Published 2026-10-19

FluentForm is a WordPress form builder plugin used by website administrators to create and manage forms. A broken access control vulnerability allows unauthenticated attackers to access or manipulate form pages and data they should not be able to view, potentially exposing sensitive information submitted through forms or allowing unauthorized actions on the website.

Technologies: WP ManageNinja LLC FluentForm. Vendors: WP ManageNinja LLC.

Quick answers

Is CVE-2026-111831 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-111831 being exploited in the wild.
How severe is CVE-2026-111831?
Medium severity, with a CVSS score of 5.3, published 19 October 2026.
Which products and versions are affected?
WP ManageNinja LLC FluentForm up to 6.2.15.
Is there a fix for CVE-2026-111831?
Yes: fixed in 6.2.16. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-111831 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2026-111831?
Check whether you run WP ManageNinja LLC FluentForm at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • Fixed in: 6.2.16

Technical details

The vulnerability is a broken access control issue in FluentForm versions up to 6.2.15 where form pages and functionality lack proper authorization checks. An unauthenticated attacker can exploit incorrectly configured access control security levels to view or perform actions on protected resources. The issue is fixed in version 6.2.16.

Affected products

  • WP ManageNinja LLC FluentForm up to 6.2.15

Timeline

  • 2026-10-09: disclosed: Reported to Patchstack
  • 2026-10-19: advisory: Published by Patchstack and NVD

References

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