CVE-2026-105197: CWE-639 Authorization Bypass Through User-Controlled Key in Appointment Booking Plugin
Description
The Appointment Booking Plugin WordPress plugin before 5.6.5 does not verify that a backend staff user is authorized to act on the specific record targeted for deletion, allowing an authenticated user with a record-scoped staff role to irreversibly delete any order, customer, or transaction on the site, including records belonging to other staff and outside their assigned scope.
CVSS v3.1
Score 2.7low
Affected software
Appointment Booking Plugin
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-105197 is an authorization bypass vulnerability (CWE-639) in the Appointment Booking Plugin for WordPress versions prior to 5.6.5. The flaw allows an authenticated backend staff user with limited record scope to delete arbitrary records such as orders, customers, or transactions that belong to other staff or are outside their assigned scope. This occurs due to missing authorization checks on the targeted record during deletion operations.
Potential Impact
An attacker with authenticated access as a staff user scoped to certain records can irreversibly delete any order, customer, or transaction record on the site, including those outside their authorized scope. This can lead to data loss and potential disruption of business operations relying on these records.
Mitigation Recommendations
Upgrade the Appointment Booking Plugin to version 5.6.5 or later, where this authorization bypass vulnerability is fixed. No other mitigation guidance is provided, so applying the official update is the recommended action.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-10-04T11:58:47.115Z
- State
- PUBLISHED
Threat ID: 6ac735da2cdf04f656f03ea5
Added to database: 10/08/2026, 06:19:06 UTC
Last enriched: 10/08/2026, 06:34:01 UTC
Last updated: 10/09/2026, 05:48:07 UTC
Views: 15
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