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Plugin vulnerabilities

Is Fluent Forms safe? Known vulnerabilities and the version to run.

Fluent Forms: a drag-and-drop form builder for contact forms, surveys and payments.

The short answer

Run Fluent Forms 6.2.17 or later. That version has a fix for every known vulnerability that's been patched.

Known vulnerabilities
47
In the last 12 months
24
Rated high or critical
11
No fix yet
0

Every known Fluent Forms vulnerability

Newest first. The most recent was disclosed on 6 November 2026. Each one links to its full record on Wordfence.

VulnerabilitySeverityAffected versionsFixed in
Missing AuthorizationCVE-2026-120858 · 6 November 2026Medium 5.36.2.16 and earlier6.2.17
Missing AuthorizationCVE-2026-111831 · 19 October 2026Medium 5.36.2.15 and earlier6.2.16
Missing Authorization to Authenticated (Custom+) Sensitive Data Exposure and ModificationCVE-2026-15178 · 9 October 2026Medium 5.46.2.5 and earlier6.2.6
Reflected Cross-Site Scripting via '{get.*}' Editor SmartCode ParameterCVE-2026-101324 · 9 October 2026Medium 4.76.2.14 and earlier6.2.15
Authenticated (Contributor+) Stored Cross-Site ScriptingCVE-2026-103343 · 1 October 2026Medium 6.46.2.14 and earlier6.2.15
Missing AuthorizationCVE-2026-103353 · 1 October 2026Medium 5.36.2.14 and earlier6.2.15
Unauthenticated Stored Cross-Site Scripting via Notification Smartcode ValuesCVE-2026-18146 · 12 August 2026High 7.26.2.11 and earlier6.2.12
Insecure Direct Object Reference to Authenticated (Form Manager+) Cross-Form Submission Entry DeletionCVE-2026-11578 · 11 August 2026Medium 4.36.2.4 and earlier6.2.5
Insecure Direct Object Reference to Authenticated (Subscriber+) Subscription CancellationCVE-2026-11880 · 10 August 2026Medium 4.36.2.0 and earlier6.2.1
Reflected Cross-Site Scripting via 'param'CVE-2026-17571 · 31 July 2026Medium 6.16.2.8 and earlier6.2.9
Authenticated (Contributor+) Stored Cross-Site ScriptingCVE-2026-11881 · 30 July 2026Medium 6.4before 6.2.66.2.6
Unauthenticated Sensitive Information Exposure via Insecure Direct Object Reference and Weak Transaction Hash in 'transaction' ParameterCVE-2026-17567 · 30 July 2026Medium 5.36.2.8 and earlier6.2.9
Unauthenticated Stored Cross-Site Scripting via Name Field Nested `password` MemberCVE-2026-16655 · 28 July 2026High 7.26.2.7 and earlier6.2.8
Incorrect Authorization to Authenticated (Subscriber+) Arbitrary Subscription Cancellation via 'subscription_id'CVE-2026-5069 · 9 July 2026Medium 5.46.2.1 and earlier6.2.2
Authenticated (Subscriber+) Authorization Bypass via 'form_id' ParameterCVE-2026-5396 · 13 May 2026High 8.26.1.21 and earlier6.2.0
Authenticated (Subscriber+) Authorization Bypass via 'table' ParameterCVE-2026-5395 · 13 May 2026High 8.26.2.0 and earlier6.2.1
Authenticated (Contributor+) Stored Cross-Site Scripting via 'permission_message' Shortcode AttributeCVE-2026-6828 · 12 May 2026Medium 6.46.2.1 and earlier6.2.2
Authenticated (Administrator+) Arbitrary File Read via Path Traversal in Email AttachmentCVE-2026-6344 · 5 May 2026Medium 4.96.2.1 and earlier6.2.2
Insecure Direct Object Reference in Stripe SCA Confirmation to Unauthenticated Payment Status ModificationCVE-2026-4160 · 16 April 2026Medium 5.36.1.216.2.0
Authenticated (Subscriber+) Stored Cross-Site Scripting via AI Form Builder ModuleCVE-2026-0996 · 9 February 2026Medium 6.46.1.14 and earlier6.1.15
Missing AuthorizationCVE-2026-25313 · 25 January 2026Medium 4.36.1.14 and earlier6.1.15
Unauthenticated Arbitrary Shortcode ExecutionCVE-2025-69001 · 13 January 2026Medium 6.56.1.11 and earlier6.1.12
Missing Authorization to Authenticated (Subscriber+) Arbitrary Form Creation via AI BuilderCVE-2025-13722 · 6 January 2026Medium 5.36.1.7 and earlier6.1.8
Unauthenticated Insecure Direct Object Reference to Payment Status Tampering via submission_idCVE-2025-13748 · 5 December 2025Medium 5.36.1.7 and earlier6.1.8
Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder 5.1.16 - 6.1.1 - Authenticated (Subscriber+) PHP Object Injection To Arbitrary File ReadCVE-2025-9260 · 2 September 2025Medium 6.55.1.16 to 6.1.16.1.2

If you run Fluent Forms

What to do now

  1. Check your version. In WordPress, go to Plugins and look under Fluent Forms. Compare it with the affected versions above.
  2. Update to 6.2.17 or later. Take a backup first, then update. If the update breaks something, you can restore the backup while you work out why.
  3. Check the rest of your site. One outdated plugin is rarely the only one. Our free security check looks at your WordPress version, and the plugins and theme it can see from the outside, for known flaws and emails you a report.

Pressfort keeps your plugins up to date for you, testing each update on a copy of your site first, and its virtual patching blocks attacks on newly disclosed flaws, often before a fix is out. If your site does get hacked, two clean-ups a year are included, with a developer stepping in when needed. See how it works.

Forms

Data sources and licences

Vulnerability data comes from Wordfence Intelligence and is refreshed daily. Severity is the CVSS score given in each record. Pressfort is not affiliated with Wordfence or Defiant Inc.

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