How severe is CVE-2026-39694?

CVE-2026-39694 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2026-39694 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-39694?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-39694 have an EU (EUVD) identifier?

Yes. CVE-2026-39694 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-20391.

When was CVE-2026-39694 published?

CVE-2026-39694 was published on 2026-04-08 and last updated on 2026-06-17.

CVE-2026-39694

CVE-2026-39694 is a medium-severity vulnerability with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-862.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (5th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-20391
Weakness: CWE-862
Published: 2026-04-08
Last modified: 2026-06-17

Description

Missing Authorization vulnerability in NSquared Simply Schedule Appointments simply-schedule-appointments allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Simply Schedule Appointments: from n/a through <= 1.6.10.2.

Frequently asked questions

What is CVE-2026-39694?: Missing Authorization vulnerability in NSquared Simply Schedule Appointments simply-schedule-appointments allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Simply Schedule Appointments: from n/a through <= 1.6.10.2.
How severe is CVE-2026-39694?: CVE-2026-39694 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2026-39694 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-39694?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-39694 have an EU (EUVD) identifier?: Yes. CVE-2026-39694 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-20391.
When was CVE-2026-39694 published?: CVE-2026-39694 was published on 2026-04-08 and last updated on 2026-06-17.

References

https://patchstack.com/database/Wordpress/Plugin/simply-schedule-appointments/vulnerability/wordpress-simply-schedule-appointments-plugin-1-6-10-2-broken-access-control-vulnerability?_s_id=cve

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