CVE-2023-23991Network attack vector

Database disclosure via insufficiently prepared SQL query

Published Mar 26, 2024 · Updated Apr 28, 2026

SQL injection in wpdevelop Booking Calendar 9.4.3 and earlier allows remote authenticated administrators to read database data. Public sources do not identify the affected parameter or code locus; they report that a user-supplied value is insufficiently escaped before use in an unprepared SQL query. Administrator privileges are required, and the documented consequence is database disclosure; no database modification is attributed.

CVSS severity7.6
High
EPSS probability0.52%
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 wpdevelop Booking Calendar 9.4.3 and earlier allows remote authenticated administrators to read database data. Public sources do not identify the affected parameter or code locus; they report that a user-supplied value is insufficiently escaped before use in an unprepared SQL query. Administrator privileges are required, and the documented consequence is database disclosure; no database modification is attributed.

The record

CVE
CVE-2023-23991
Published
Mar 26, 2024
Updated
Apr 28, 2026
Vendor
wpdevelop
Product
Booking Calendar
Classifications
CWE-89, CAPEC-66, T1213
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Mar 26, 2024CVE 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 <=9.4.3 changes=[{"at":"9.4.3.1","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

wpdevelop · Booking Calendarversion=n/a <=9.4.3 changes=[{"at":"9.4.3.1","status":"unaffected"}]

Published CVSS scores

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 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')
CAPEC-66SQL Injection
T1213Data from Information Repositories

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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