Evidence used
- No CISA KEV confirmation is currently recorded.
- EPSS is 0.13% for the current model date.
BlackTreeCVE IntelligenceUnknown · Appointment Booking Plugin
Low technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.
Low technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.
Fix not verifiedThe 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.
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.
The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.
An attacker operating through a network path may attempt exploitation with elevated privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.
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.
The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.
An attacker operating through a network path may attempt exploitation with elevated privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.
CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.
No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.
No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.
CWE-639: Authorization Bypass Through User-Controlled Key. The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:NCommon Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.
Operational remediation based on structured source evidence.
Published 8 Oct 2026 · Last source change 8 Oct 2026, 10:59 UTC · CWE-639 · Authorization Bypass Through User-Controlled Key
Missing structured fields: affected product. Missing data is not evidence of low risk; review the primary advisory.