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CVE Record

CVE-2026-0996: Fluent Forms <= 6.1.14 - Authenticated (Subscriber+) Stored Cross-Site Scripting via AI Form Builder Module

The Fluent Forms plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the AI Form Builder module in all versions up to, and including, 6.1.14 due to a combination of missing authorization checks, a leaked nonce, and insufficient input sanitization. The vulnerability allows Subscriber-level users to trigger AI form generation via a protected endpoint. When prompted, AI services will typically return bare JavaScript code (without <script> tags), which bypasses the plugin's sanitization. This stored JavaScript executes whenever anyone views the generated form, making it possible for authenticated attackers with Subscriber-level access and above to inject arbitrary web scripts that will execute in the context of any user accessing the form.

MediumCVSS 6.4Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2026-0996 affects the Fluent Forms WordPress plugin through version 6.1.14. A logged-in low-privilege user could cause stored JavaScript to be saved in an AI-generated form. That script can run when others view the form, potentially affecting administrators or site visitors.

Executive priority

Treat as a priority for WordPress sites with user accounts or public registration. It is not described as unauthenticated or actively exploited, but stored XSS can affect administrator sessions and site trust. Patch or restrict access promptly.

Technical view

This is authenticated stored XSS in Fluent Forms’ AI Form Builder module. Sources cite missing authorization checks, a leaked nonce, and insufficient sanitization. Subscriber-level users can trigger AI form generation, and AI-returned bare JavaScript may bypass sanitization and execute when the generated form is viewed.

Likely exposure

Exposure is likely limited to WordPress sites running Fluent Forms up to and including 6.1.14, especially sites allowing Subscriber-level or other untrusted authenticated users. Risk increases if the AI Form Builder module is enabled or accessible.

Exploitation context

The source bundle does not cite CISA KEV listing or active exploitation. Exploitation requires authenticated access at Subscriber level or higher. Successful abuse could execute script in another user’s browser when they view a generated form.

Researcher notes

The public description ties the issue to CWE-79, missing authorization, nonce exposure, and sanitization gaps in the AI Form Builder path. The provided WordPress Trac changeset appears relevant, but the bundle does not explicitly name a fixed release.

Mitigation direction

  • Identify all WordPress sites using Fluent Forms.
  • Check whether installed versions are 6.1.14 or earlier.
  • Update to a vendor-supported version newer than 6.1.14 when available.
  • If no update is available, follow vendor guidance.
  • Restrict untrusted user registration and Subscriber access where possible.
  • Limit access to AI Form Builder functionality if configurable.

Validation and detection

  • Confirm Fluent Forms version on each WordPress site.
  • Review whether public user registration is enabled.
  • Check for untrusted Subscriber-level accounts.
  • Inspect generated forms for unexpected script-like content.
  • Review WordPress/plugin logs for AI form generation activity.
  • Verify remediation against vendor release notes or plugin changelog.
Prepared
Confidence
high
Sources
6

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-79: User-session and phishing behavior lookup

Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

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cve · low confidence lookup

CVE-2026-0996 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
6.4 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
6Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
6.4CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N3.12.7Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

6.4Medium
CVSS 3.1 vector shape for CVE-2026-0996Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
techjewelFluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder0unaffected
Weakness

CWE details

CWE-79

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-79 · source CWE mapping

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

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