CVE-2023-6957

Fluent Forms <= 5.1.9 - Authenticated (Contributor+) Stored Cross-Site Scripting

MEDIUM
5.4
CVSS Score
Published: March 13, 2024 at 03:27 PM UTC
Updated: June 17, 2026 at 06:51 AM UTC
2 products affected across 2 vendorsContact FormFluent Forms

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Severity
MEDIUM5.4
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

The Fluent Forms plugin for WordPress by Fluent Forms plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 5.1.9 due to insufficient input sanitization and output escaping. This makes it possible for attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The exploitation level depends on who is granted the right to create forms by an administrator. This level can be as low as contributor, but by default is admin.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

95%
v < 5.1.10
Affected range stops below 5.1.10, so it looks safe — our inference, not a vendor statement
Fluent Forms· Techjewelwordpress-plugin
60%
v ≤ 5.1.9

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-79

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