CVE-2026-59523

mediumCVSS 6.5covered by 1 sourcefirst seen 2026-07-13

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 <= 1.6.11.11.

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Exploitation outlook

Low exploitation risk0.15% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 5% of all EPSS-scored CVEs.

Advisory coverage (1)

mediumCVE-2026-59523: Missing Authorization vulnerability in NSquared Simply Schedule Appointments simply-schedule-a…nvd · 2026-07-13

External references

NVD record for CVE-2026-59523

CVE.org record

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