CVE-2026-105193
Booking Calendar < 11.8 - Unauthenticated Booking Information Disclosure and Modification via Predictable Booking Hash
- State
- Published
- Severity
- 4.8 Medium
- Published
- Oct 8, 2026
- Updated
- Oct 8, 2026
- Reserved
- Oct 4, 2026
Description
The Booking Calendar WordPress plugin before 11.8 does not generate its per-booking access hashes with sufficient entropy, deriving each from a low-entropy time-seeded value, which can allow unauthenticated attackers who are able to determine a booking's creation time to predict the hash and then read that booking's personal data or modify the booking in place.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 4.8 Medium | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N | CISA-ADP |
Weaknesses
- CWE-326 Inadequate Encryption Strength
Affected Products
| Product | Versions |
|---|---|
Booking CalendarUnknown |
|
References
- https://wpscan.com/vulnerability/c6a81cf3-095d-4d7e-83c5-80f44327e7fe/exploitvdb-entrytechnical-description
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