CVE-2025-3439
Wpeverest Everest Forms insecure deserialization
- Published11 Apr 2025
Description
The Everest Forms – Contact Form, Quiz, Survey, Newsletter & Payment Form Builder for WordPress plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 3.1.1 via deserialization of untrusted input from the 'field_value' parameter. This makes it possible for unauthenticated attackers to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present.
CVSS 3.1 breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HAffected products
Remediation
Frequently asked
Is CVE-2025-3439 being actively exploited?
CVE-2025-3439 is not in the CISA KEV catalog. Its EPSS exploit probability is 1.17%.
How severe is CVE-2025-3439?
CVE-2025-3439 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 1.17% probability of exploitation.
Which products are affected by CVE-2025-3439?
Affected products include Wpeverest Everest Forms.
How do I fix CVE-2025-3439?
Upgrade affected software to a fixed version, for example Wpeverest Everest Forms 3.1.2 or later, then confirm no affected versions remain in your inventory.
How Secuno handles this
Secuno correlates vulnerabilities like CVE-2025-3439 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.
Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.