PatchSiren cyber security CVE debrief

CVE-2026-42384 NSquared CVE debrief

CVE-2026-42384 is a HIGH severity vulnerability (CVSS Score: 7.5) affecting Simply Schedule Appointments plugin versions < 1.6.11.2. The vulnerability is described as Unauthenticated Sensitive Data Exposure.

Vendor: NSquared
Product: Simply Schedule Appointments
CVSS: HIGH 7.5
CISA KEV: Not listed in stored evidence
Original CVE published: 2026-06-15
Original CVE updated: 2026-06-15
Advisory published: 2026-06-15
Advisory updated: 2026-06-15

Who should care

Users of Simply Schedule Appointments plugin versions < 1.6.11.2 should update to version 1.6.11.2 or later to mitigate this vulnerability.

Technical summary

The vulnerability has a CVSS vector of CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N and is classified under CWE-201.

Defensive priority

HIGH

Recommended defensive actions

Update Simply Schedule Appointments plugin to version 1.6.11.2 or later.
Review and restrict access to sensitive data.

Evidence notes

Evidence from Patchstack (ref-4) indicates that the vulnerability exists in Simply Schedule Appointments plugin versions < 1.6.11.2.

Sources and references

Verified primary and authoritative sources

CVE-2026-42384 CVE Program record
Publisher, destination, and source semantics verified

URL: https://www.cve.org/CVERecord?id=CVE-2026-42384

CVE Program - Official CVE Program record with source-provided CVE metadata.
CVE-2026-42384 NVD vulnerability detail
Publisher, destination, and source semantics verified

URL: https://nvd.nist.gov/vuln/detail/CVE-2026-42384

NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.