PT-2026-49372 · Nsquared+1 · Simply Schedule Appointments

CVE-2026-39447

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Published

2026-05-28

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Updated

2026-06-15

CVSS v3.1

7.1

High

VectorAV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
Name of the Vulnerable Software and Affected Versions Simply Schedule Appointments versions prior to 1.6.10.7
Description The Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin for WordPress contains a stored Cross-Site Scripting (XSS) flaw. This issue occurs due to insufficient input sanitization and output escaping, allowing unauthenticated attackers to inject arbitrary web scripts into pages. These scripts execute automatically when a user accesses the affected page.
Recommendations Update to a version newer than 1.6.10.6.

Fix

XSS

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Weakness Enumeration

Related Identifiers

CVE-2026-39447

Affected Products

Simply Schedule Appointments