CVE-2026-123128

GemBooking < 1.7.1 - Unauthenticated Team Member Double-Booking via Cross-Object Race Condition

Published Nov 9, 2026 CVSS 3.1 · 3.7 Low EPSS < 1% KEV · Not listed
Description
The GemBooking WordPress plugin before 1.7.1 does not serialise concurrent booking requests per team member, allowing unauthenticated users to create overlapping confirmed bookings for the same team member across different bookable items by sending simultaneous requests.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Wordpress-extensions
Wordpress-extensions gembooking
Vendors & Products Wordpress-extensions
Wordpress-extensions gembooking
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Weaknesses CWE-666
Type Values Removed Values Added
Weaknesses CWE-362
Metrics cvssV3_1

{'score': 3.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N'}

Type Values Removed Values Added
Weaknesses CWE-666
Type Values Removed Values Added
Description The GemBooking WordPress plugin before 1.7.1 does not serialise concurrent booking requests per team member, allowing unauthenticated users to create overlapping confirmed bookings for the same team member across different bookable items by sending simultaneous requests.
Title GemBooking < 1.7.1 - Unauthenticated Team Member Double-Booking via Cross-Object Race Condition
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
WPScan
Published
Updated
Nov 9, 2026, 2:12 PM
Reserved
Nov 5, 2026, 1:13 PM
Status
Deferred
Published
Nov 9, 2026, 7:17 AM
Modified
Nov 10, 2026, 4:28 PM