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Appointment Booking Calendar <= 1.6.10.0 - Unauthenticated SQL Injection via 'fields' Parameter

CVE-2026-3658 · simply-schedule-appointments

Important: Seeing this vulnerability listed does not mean your website is affected. Exposure depends on whether you run Simply Schedule Appointments at a vulnerable version. How SiteRespond intelligence works

Vulnerability
Appointment Booking Calendar <= 1.6.10.0 - Unauthenticated SQL Injection via 'fields' Parameter
Affected software
simply-schedule-appointments(Plugin)
Affected versions
  • ≤ 1.6.10.0
Authentication
Unauthenticated
Vulnerability type
SQL injection
CVE
CVE-2026-3658
Published
18 March 2026
CISA KEV
Not listed in CISA KEV at last catalog refresh
Impact
May allow attackers to read or modify database contents beyond intended access.
Source

Data imported from Wordfence Intelligence (advisory 67c7b9b2-e73f-47fe-aecc-14e998a607c8). Methodology and redistribution notes

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