TI-2024-03867 Aliases CVE-2024-4157 GHSA-h74g-q68m-46qw

Deserialization of untrusted data in techjewel Fluent Forms – Customizable Contact Forms…

MEDIUM 41CWE-502Published 2024-05-22 · Updated 2026-04-08

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-502.

Summary

The Contact Form Plugin by Fluent Forms for Quiz, Survey, and Drag & Drop WP Form Builder plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 5.1.15 via deserialization of untrusted input in the extractDynamicValues function. This makes it possible for authenticated attackers, with contributor-level access and above, to inject a PHP Object. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code. Successful exploitation requires the attacker to have "View Form" and "Manage Form" permissions, which must be explicitly set by an administrator. However, this requirement can be bypassed when this vulnerability is chained with CVE-2024-2771.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00696 53rd percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
techjewel	Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder	up to 5.1.15	—	No fix listed	CNA

Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder Vendortechjewel Affected up to 5.1.15 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:fluentforms:contact_form::::::wordpress::*	before 5.1.16	Vulnerable	Fluentforms

cpe:2.3:a:fluentforms:contact_form:*:*:*:*:*:wordpress:*:* Versions before 5.1.16 Vulnerable ·Fluentforms

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2024-4157
2026-10-03 Alias added: GHSA-h74g-q68m-46qw

References

Patch 1

https://plugins.trac.wordpress.org/changeset/3081740/fluentform

Advisory 1

https://www.wordfence.com/threat-intel/vulnerabilities/id/8def156a-f2f2-4640-a1c9-c21c74e1f308?source=cve

TI-2024-08826 Deserialization of untrusted data in techjewel FluentSMTP – WP SMTP Plugin with Amazon… CVSS 3.1CRITICAL 9.8
TI-2026-13364 Deserialization of untrusted data in techjewel Fluent Forms Pro Add On Pack CVSS 3.1HIGH 8.8
TI-2026-04723 Fluent Forms <= 6.1.21 - Authenticated (Subscriber+) Authorization Bypass via 'form_id' Parameter CVSS 3.1HIGH 8.2
TI-2026-04722 Fluent Forms <= 6.2.0 - Authenticated (Subscriber+) Authorization Bypass via 'table' Parameter CVSS 3.1HIGH 8.2
TI-2026-02060 Fluent Forms Pro Add On Pack <= 6.1.17 - Missing Authorization to Unauthenticated Payment Status modification CVSS 3.1HIGH 7.5
TI-2026-02001 Fluent Forms Pro <= 6.1.17 - Unauthenticated Stored Cross-Site Scripting via Draft Form Submission CVSS 3.1HIGH 7.2

See all 23 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences