CVE-2023-50851 WordPress Simply Schedule Appointments Plugin < 1.6.6.1 is vulnerable to SQL Injection

What is CVE-2023-50851?

CVE-2023-50851 is a high-severity SQL injection vulnerability in Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin, published on 28 Dec 2023. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in N Squared Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin.This issue affects Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin: from n/a before 1.6.6.1.

Weakness: CWE-89

Which versions are affected by CVE-2023-50851?

It affects 1 product.

Products include Nsqua Simply Schedule Appointments.

How do I fix CVE-2023-50851?

No fix has been published for CVE-2023-50851 yet. Limit exposure of the affected software until one is available.

Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.

Is CVE-2023-50851 being exploited?

There is no known exploitation of CVE-2023-50851 in the wild and no public exploit code.

Other vulnerabilities in Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin

• CVE-2024-7129 Appointment Booking Calendar < 1.6.7.43 - Admin+ Template Injection to RCE High 7.2
• CVE-2022-2373 Simply Schedule Appointments < 1.5.7.7 - Unauthenticated Email Address Disclosure Medium 5.3
• CVE-2024-7876 Appointment Booking Calendar < 1.6.7.55 - Admin+ Stored XSS Medium 4.8
• CVE-2024-7877 Appointment Booking Calendar < 1.6.7.55 - Admin+ Stored XSS Medium 4.8
• CVE-2022-2374 Simply Schedule Appointments < 1.5.7.7 - Admin+ Stored Cross-Site Scripting Medium 4.8

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-9vx6-546g-266v.