CVE-2026-57814 WPMU DEV - Your All-in-One WordPress Platform CVE debrief

Who should care

WordPress site administrators and users of the Forminator plugin should be aware of this vulnerability and take steps to mitigate it. This includes updating the plugin to a patched version, implementing input validation and sanitization, and monitoring for suspicious activity. Additionally, security teams and vulnerability management teams should prioritize this vulnerability due to its high severity and potential impact on website security.

Technical summary

The CVE-2026-57814 vulnerability is caused by improper neutralization of input during web page generation, leading to a DOM-Based XSS attack. The CVSS score is 7.1, indicating a HIGH severity level. This type of vulnerability occurs when user-supplied input is not properly sanitized, allowing an attacker to inject malicious JavaScript code into the webpage. In the context of the Forminator plugin, this could allow an attacker to execute arbitrary JavaScript code in the browser of a user interacting with a vulnerable form.

Defensive priority

High priority should be given to updating the Forminator plugin to a version that addresses this vulnerability.

Recommended defensive actions

• Update Forminator plugin to a patched version
• Implement input validation and sanitization
• Monitor for suspicious activity
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record was published on 2026-07-13T10:16:45.393Z and has not been modified since then. The NVD entry is currently in the 'Received' status. There is limited information available about the vulnerability, and defenders should verify the affected scope and severity with the vendor or other reliable sources.

Official resources