CVE-2026-13609 DynamiApps CVE debrief

Who should care

Administrators and users of the Frontend Admin by DynamiApps WordPress plugin should be aware of this vulnerability and take necessary actions to update the plugin and prevent exploitation.

Technical summary

The Frontend Admin by DynamiApps WordPress plugin before 3.29.9 decodes HTML entities in a submitted form field value after sanitizing it, which restores HTML tags that the sanitizer had neutralized. A double-encoded payload submitted by an unauthenticated visitor is therefore stored as a live tag and later output without escaping on the Frontend Admin by DynamiApps WordPress plugin before 3.29.9's front-end display surfaces, resulting in stored cross-site scripting that executes in the browser of any user, including an administrator, who views a page displaying the submitted value.

Defensive priority

High-priority defensive actions are required to address this vulnerability, as it allows for stored cross-site scripting.

Recommended defensive actions

• Update the Frontend Admin by DynamiApps WordPress plugin to version 3.29.9 or later
• Implement input validation and output encoding to prevent cross-site scripting
• Monitor for suspicious activity on the affected plugin
• 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 evidence provided indicates that the Frontend Admin by DynamiApps WordPress plugin before 3.29.9 is vulnerable to stored cross-site scripting. The CVE record and NVD detail provide additional context on the vulnerability.

Official resources