CVE-2025-11723
Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin <= 1.6.9.5 - Unauthenticated Sensitive Information Exposure
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-330 |
| Vendor | croixhaug |
| Product | appointment booking calendar — simply schedule appointments booking plugin |
| Published | Jan 6, 2026 |
| Last Updated | Apr 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
croixhaug / Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin
0 ≤ 1.6.9.5
References
Credits
Lucas Montes