CVE-2026-17020: CWE-639 Authorization Bypass Through User-Controlled Key in Salon Booking System
The Salon Booking System WordPress plugin through 10.31.0 does not verify that a requested booking belongs to the caller on one of its REST API endpoints, requiring only a basic read capability, allowing any authenticated user (including a Subscriber or self-registered customer account) to disclose any customer's booking personal data such as name, email, phone number, address and private notes by enumerating booking identifiers.
AI Analysis
Technical Summary
The Salon Booking System WordPress plugin versions up to 10.31.0 contain an authorization bypass vulnerability (CWE-639) in one of its REST API endpoints. The endpoint fails to verify ownership of booking records when accessed by authenticated users with read capabilities. Consequently, any authenticated user, including those with minimal privileges such as Subscribers or self-registered customers, can enumerate booking identifiers to retrieve sensitive personal data of other customers. This vulnerability does not require user interaction and has a CVSS 3.1 base score of 4.3, indicating a medium impact primarily on confidentiality.
Potential Impact
An attacker with any authenticated user account can access personal booking information of other customers, including names, emails, phone numbers, addresses, and private notes. This leads to unauthorized disclosure of sensitive customer data. There is no indication of impact on data integrity or availability. No known exploits are reported in the wild.
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 REST API endpoints to trusted users only or disable the affected endpoints if possible. Monitor for updates from the plugin vendor regarding an official fix.
CVE-2026-17020: CWE-639 Authorization Bypass Through User-Controlled Key in Salon Booking System
Description
The Salon Booking System WordPress plugin through 10.31.0 does not verify that a requested booking belongs to the caller on one of its REST API endpoints, requiring only a basic read capability, allowing any authenticated user (including a Subscriber or self-registered customer account) to disclose any customer's booking personal data such as name, email, phone number, address and private notes by enumerating booking identifiers.
CVSS v3.1
Score 4.3medium
Affected software
Salon Booking System
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Salon Booking System WordPress plugin versions up to 10.31.0 contain an authorization bypass vulnerability (CWE-639) in one of its REST API endpoints. The endpoint fails to verify ownership of booking records when accessed by authenticated users with read capabilities. Consequently, any authenticated user, including those with minimal privileges such as Subscribers or self-registered customers, can enumerate booking identifiers to retrieve sensitive personal data of other customers. This vulnerability does not require user interaction and has a CVSS 3.1 base score of 4.3, indicating a medium impact primarily on confidentiality.
Potential Impact
An attacker with any authenticated user account can access personal booking information of other customers, including names, emails, phone numbers, addresses, and private notes. This leads to unauthorized disclosure of sensitive customer data. There is no indication of impact on data integrity or availability. No known exploits are reported in the wild.
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 REST API endpoints to trusted users only or disable the affected endpoints if possible. Monitor for updates from the plugin vendor regarding an official fix.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-07-24T10:19:39.870Z
- State
- PUBLISHED
Threat ID: 6a7972aebf8831d5392faff8
Added to database: 08/10/2026, 06:41:50 UTC
Last enriched: 08/17/2026, 14:49:07 UTC
Last updated: 09/24/2026, 01:47:40 UTC
Views: 31
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