CVE-2025-53990
7.2jetmonsters · JetFormBuilder
A deserialization of untrusted data vulnerability in the JetFormBuilder plugin allows authenticated administrators to perform PHP object injection.
Executive summary
The JetFormBuilder plugin for WordPress is vulnerable to PHP object injection, which could allow an authenticated administrator to achieve full system compromise.
Vulnerability
This vulnerability involves the insecure deserialization of untrusted data (CWE-502), which can be triggered by an attacker with administrative privileges to execute arbitrary code. The flaw resides within the JetFormBuilder plugin and allows for the injection of PHP objects.
Business impact
Successful exploitation of this vulnerability grants an attacker the ability to execute arbitrary code on the underlying server, leading to a complete compromise of the WordPress environment. Given the high CVSS score of 7.2, this flaw poses a significant risk to data integrity and system availability. Unauthorized control over the application could result in the theft of sensitive user data, modification of site content, or the installation of persistent backdoors.
Remediation
Immediate Action: Since a specific patch version is currently unknown, administrators should monitor the official JetFormBuilder changelog and the Patchstack database for the release of a security update and apply it immediately.
Proactive Monitoring: Review web server access logs for suspicious administrative activity or unusual serialized strings being passed to plugin endpoints.
Compensating Controls: Use a Web Application Firewall (WAF) to block requests containing serialized PHP objects or suspicious payloads directed at the WordPress plugin directory.
Exploitation status
Public Exploit Available: Unknown.
Analyst recommendation
Organizations utilizing JetFormBuilder must treat this vulnerability with high priority, as deserialization flaws are frequently leveraged to gain full remote code execution. Ensure that administrative access to the WordPress dashboard is strictly limited to authorized personnel and monitor vendor communications closely for the availability of a corrective update.
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Sources
Originally found and disclosed by Que Thanh Tuan | Patchstack Bug Bounty Program, per the CVE Program record.