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Medium 6.5Published Jan 5, 2026

CVE-2025-11723Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin <= 1.6.9.5 - Unauthenticated Sensitive Information Exposure

Updated under an hour ago ()

Does this affect you?

It affects croixhaug Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

The Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 1.6.9.5 via the hash() function due to use of a hardcoded fall-back salt. This makes it possible for unauthenticated attackers to generate a valid token across sites running the plugin that have not manually set a salt in the wp-config.php file and access booking information that will allow them to make modifications.

CVSS
6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Weakness (CWE)
CWE-330
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
Wordfence
NVD analysis
Deferred
Record last updated
Apr 8, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
croixhaug Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin
croixhaug:appointment_booking_calendar_simply_schedule_appointments_booking_plugin (from the name)
through 1.6.9.5
CNA record

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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