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CVE-2026-123128

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

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.

CVSS 3.1 · 3.7 Low EPSS < 1% KEV · Not listed
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CVE-2026-123131

GemBooking < 1.7.1 - Staff+ Arbitrary Post Deletion and Site Settings Update via REST Context Check Bypass

The GemBooking WordPress plugin before 1.7.1 does not properly verify that a REST request is addressed to its own routes before temporarily granting staff users administrative capabilities, allowing users with the GemBooking WordPress plugin before 1.7.1's Staff role to delete arbitrary posts and update the site's settings.

CVSS 3.1 · 5.9 Medium EPSS < 1% KEV · Not listed
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