CVE-2023-50851Network attack vector

Administrator-level database disclosure via unprepared SQL queries

Published Dec 28, 2023 · Updated Apr 28, 2026

SQL injection in N Squared Digital Simply Schedule Appointments before 1.6.6.1 allows remote authenticated users to read database data. The affected query and parameter are undisclosed; user input is insufficiently escaped and the existing SQL statement is not adequately prepared. Administrator access is required, and injected query fragments can extract sensitive information from the WordPress database.

CVSS severity7.6
High
EPSS probability0.53%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SQL injection in N Squared Digital Simply Schedule Appointments before 1.6.6.1 allows remote authenticated users to read database data. The affected query and parameter are undisclosed; user input is insufficiently escaped and the existing SQL statement is not adequately prepared. Administrator access is required, and injected query fragments can extract sensitive information from the WordPress database.

The record

CVE
CVE-2023-50851
Published
Dec 28, 2023
Updated
Apr 28, 2026
Vendor
N Squared Digital, LLC
Product
Simply Schedule Appointments
Classifications
CWE-89, T1190
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Dec 28, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=n/a <1.6.6.1 changes=[{"at":"1.6.6.1","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

N Squared Digital, LLC · Simply Schedule Appointmentsversion=n/a <1.6.6.1 changes=[{"at":"1.6.6.1","status":"unaffected"}]

Published CVSS scores

6.6WordfenceCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
7.6PatchstackCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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