CVE-2026-103304: CWE-862 Missing Authorization in eaSYNC Booking
Description
The eaSYNC Booking WordPress plugin before 1.3.31 does not perform authorization or nonce checks on several of its cancellation-related AJAX actions, allowing unauthenticated users to create booking cancellation requests, trigger booking notification emails, and overwrite the content of the emails the site sends.
CVSS v3.1
Score 5.3medium
Affected software
eaSYNC Booking
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-103304 describes a missing authorization vulnerability (CWE-862) in the eaSYNC Booking WordPress plugin prior to version 1.3.31. The plugin fails to perform necessary authorization and nonce verification on multiple AJAX endpoints related to booking cancellations. As a result, unauthenticated attackers can submit cancellation requests, cause the system to send booking notification emails, and modify the content of those emails without proper permissions.
Potential Impact
Unauthenticated attackers can manipulate booking cancellations and notifications, potentially disrupting booking operations and causing unauthorized email notifications with altered content to be sent. This could lead to confusion or misuse of the booking system's communication channels.
Mitigation Recommendations
Upgrade the eaSYNC Booking plugin to version 1.3.31 or later where this vulnerability is fixed. Since the affected versions are explicitly stated, applying the official update is the recommended remediation. No additional mitigation guidance is provided in the input data.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-09-30T11:32:21.820Z
- State
- PUBLISHED
Threat ID: 6ad0776a2cdf04f6560ed3b1
Added to database: 10/15/2026, 06:49:14 UTC
Last enriched: 10/15/2026, 07:04:52 UTC
Last updated: 10/15/2026, 19:00:28 UTC
Views: 13
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