CVE-2024-4157 Deserialization in Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder
Authenticated attackers can exploit PHP object injection in Fluent Forms to execute code or access data if a POP chain exists.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-4157?
CVE-2024-4157 is a high-severity unsafe deserialization vulnerability in techjewel Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder, published on 22 May 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-502
Which versions are affected by CVE-2024-4157?
It affects 1 product.
Products include Fluentforms Contact Form.
How do I fix CVE-2024-4157?
No fix has been published for CVE-2024-4157 yet. Limit exposure of the affected software until one is available.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2024-4157 being exploited?
There is no known exploitation of CVE-2024-4157 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in techjewel Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder
- CVE-2024-2771 Missing authorization in Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder
- CVE-2022-3463 FluentForm < 4.3.13 - CSV Injection
- CVE-2021-34620 CSRF in WP Fluent Forms < 3.6.67 allows stored XSS and Privilege Escalation
- CVE-2024-2782 Missing authorization in Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder
- CVE-2024-10646 Cross-site scripting in Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder
Sources
Also known as GHSA-h74g-q68m-46qw.