CVE-2026-39694 NSquared CVE debrief

Who should care

Users of Simply Schedule Appointments versions from n/a through 1.6.10.2 should be aware of this MEDIUM severity vulnerability and take necessary actions to protect their deployments. This includes verifying affected scope, applying vendor remediation if available, and monitoring for potential exploitation attempts.

Technical summary

The CVE-2026-39694 vulnerability has a CVSS score of 5.3 and is classified as MEDIUM severity. It was published on 2026-04-08T09:16:41.783Z and last modified on 2026-07-24T20:10:00.147Z. The vulnerability is related to a Missing Authorization issue in Simply Schedule Appointments, which could allow for Exploiting Incorrectly Configured Access Control Security Levels. Users of Simply Schedule Appointments should be aware of this vulnerability and take necessary actions.

Defensive priority

MEDIUM severity vulnerability requiring attention and immediate action

Recommended defensive actions

• Inventory and verify Simply Schedule Appointments versions
• Apply vendor remediation if available
• Monitor for potential exploitation attempts
• Implement compensating controls if necessary
• Review 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 2026-04-08T09:16:41.783Z and last modified on 2026-07-24T20:10:00.147Z. The NVD entry is currently Deferred. The vulnerability affects Simply Schedule Appointments versions from n/a through 1.6.10.2. Users should verify their deployments and monitor for potential exploitation attempts.

Official resources