CVE-2026-18777: CWE-862 Missing Authorization in TrueBooker
The TrueBooker WordPress plugin before 1.2.7 does not have proper authorisation checks in one of its AJAX actions, allowing unauthenticated users to change the status of arbitrary appointments, as well as to trigger notification emails to the affected customers.
AI Analysis
Technical Summary
CVE-2026-18777 describes a missing authorization vulnerability (CWE-862) in the TrueBooker WordPress plugin prior to version 1.2.7. The flaw exists in an AJAX action that does not verify user permissions, enabling unauthenticated attackers to modify appointment statuses arbitrarily and send notification emails to affected customers. This could lead to unauthorized manipulation of appointment data and potential customer confusion or disruption.
Potential Impact
Unauthenticated attackers can change appointment statuses and trigger notification emails, potentially causing unauthorized modifications to booking data and misleading customers. There is no evidence of known exploits in the wild. The impact is limited to appointment management and notification functions within the plugin.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to the affected AJAX actions if possible or disable the plugin to prevent exploitation.
CVE-2026-18777: CWE-862 Missing Authorization in TrueBooker
Description
The TrueBooker WordPress plugin before 1.2.7 does not have proper authorisation checks in one of its AJAX actions, allowing unauthenticated users to change the status of arbitrary appointments, as well as to trigger notification emails to the affected customers.
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-18777 describes a missing authorization vulnerability (CWE-862) in the TrueBooker WordPress plugin prior to version 1.2.7. The flaw exists in an AJAX action that does not verify user permissions, enabling unauthenticated attackers to modify appointment statuses arbitrarily and send notification emails to affected customers. This could lead to unauthorized manipulation of appointment data and potential customer confusion or disruption.
Potential Impact
Unauthenticated attackers can change appointment statuses and trigger notification emails, potentially causing unauthorized modifications to booking data and misleading customers. There is no evidence of known exploits in the wild. The impact is limited to appointment management and notification functions within the plugin.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to the affected AJAX actions if possible or disable the plugin to prevent exploitation.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-08-04T07:43:32.666Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a854e93c6e8be033248b295
Added to database: 08/19/2026, 06:34:59 UTC
Last enriched: 08/19/2026, 06:54:35 UTC
Last updated: 08/19/2026, 11:17:36 UTC
Views: 6
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