CVE-2025-9260 Deserialization in Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder
Authenticated attackers can exploit PHP object injection to read arbitrary files or execute code via POP chains.
- 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-2025-9260?
CVE-2025-9260 is a medium-severity unsafe deserialization vulnerability in techjewel Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder, published on 2 Sep 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder plugin for WordPress is vulnerable to PHP Object Injection in versions 5.1.16 to 6.1.1 via deserialization of untrusted input in the parseUserProperties function. This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject a PHP Object. The additional presence of a POP chain allows attackers to read arbitrary files. If allow_url_include is enabled on the server, remote code execution is possible. While the vendor patched this issue in version 6.1.0, the patch caused a fatal error in the vulnerable code, due to a missing class import, so we consider 6.1.2 to be the most complete and best patched version
Weakness: CWE-502
Which versions are affected by CVE-2025-9260?
How do I fix CVE-2025-9260?
No fix has been published for CVE-2025-9260 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-2025-9260 being exploited?
There is no known exploitation of CVE-2025-9260 in the wild and no public exploit code.
Sources
Also known as GHSA-hjqj-53jj-f33r.