CVE-2026-104000 Simply Schedule Appointments - Stored XSS

Simply Schedule Appointments WordPress plugin <= 1.6.12.35 contains a stored cross-site scripting caused by insufficient input sanitization and output escaping in the 'status' parameter, letting unauthenticated attackers inject scripts executed by administrators with Support PIN, exploit requires knowledge of site-wide Support PIN.

CVSS base score 7.2 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
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