CVE-2026-65508
Received Received - Intake

Unauthenticated SQL Injection in Simply Schedule Appointments

Publication date: 2026-08-06

Last updated on: 2026-08-06

Assigner: Patchstack

Description
Unauthenticated SQL Injection in Simply Schedule Appointments <= 1.6.12.10 versions.

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Meta Information

Published
2026-08-06
Last Modified
2026-08-06
Generated
2026-08-06
AI Q&A
2026-08-06
EPSS Evaluated
N/A
NVD
CVE-2026-65508
EUVD
EUVD-2026-53964

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
simply_schedule_appointments simply_schedule_appointments to 1.6.12.10 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-89 The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.

Attack-Flow Graph

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Executive Summary

This is an unauthenticated SQL injection vulnerability in Simply Schedule Appointments plugin versions 1.6.12.10 and below. It allows remote attackers to execute arbitrary SQL commands on the database without authentication.

Detection Guidance

To detect this vulnerability, inspect network traffic for SQL injection attempts targeting Simply Schedule Appointments endpoints. Check application logs for unusual database queries or errors. Use tools like SQLmap to test for injection flaws in the application.

Impact Analysis

An attacker could exploit this to read, modify, or delete sensitive data in the database, including user information, appointment details, or other stored data. This could lead to data breaches or service disruption.

Compliance Impact

This vulnerability could lead to unauthorized access to personal data, violating GDPR and HIPAA requirements for data protection and confidentiality. Organizations may face legal penalties and reputational damage.

Mitigation Strategies

Immediately update Simply Schedule Appointments to the latest version. If an update is unavailable, disable the plugin or restrict access to the vulnerable endpoints via firewall rules. Implement input validation and use prepared statements in the application code.

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