CVE-2023-50851

Name: CVE-2023-50851
Creator: NVD / NIST
Published: 2023-12-28T12:15:43.193+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.2/10EPSS 0.53%

Last modified Jun 17, 2026

CVE-2023-50851 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. 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.. EPSS estimates a 0.53% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.2/10

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.53%

41.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-89

Affected Software

Vendor	Product	Versions
Nsqua	Simply Schedule Appointments	< 1.6.6.1

References

Timeline

Published: Dec 28, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-50851?

How severe is CVE-2023-50851?

CVE-2023-50851 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 0.53% probability of exploitation in the next 30 days.

How do I fix CVE-2023-50851?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-50851?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST