CVE-2022-0694Public exploitNetwork attack vector

Unauthenticated SQL injection via unescaped calendar parameter

Published Mar 21, 2022 · Updated Aug 2, 2024

SQL injection in Elbtide Advanced Booking Calendar before 1.7.0 allows remote attackers to execute injected SQL through an AJAX request. The abc_booking_getSingleCalendar action inserts the unvalidated, unescaped calendar parameter into an SQL statement. No account is required, but the request needs a nonce exposed by a page containing a configured calendar shortcode; the published proof of concept demonstrates a five-second database delay.

CVSS severity9.8
Critical
EPSS probability1.85%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

SQL injection in Elbtide Advanced Booking Calendar before 1.7.0 allows remote attackers to execute injected SQL through an AJAX request. The abc_booking_getSingleCalendar action inserts the unvalidated, unescaped calendar parameter into an SQL statement. No account is required, but the request needs a nonce exposed by a page containing a configured calendar shortcode; the published proof of concept demonstrates a five-second database delay.

The record

CVE
CVE-2022-0694
Published
Mar 21, 2022
Updated
Aug 2, 2024
Vendor
Advanced Booking Calendar
Product
Advanced Booking Calendar
Classifications
CWE-89, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 21, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=1.7.0 <1.7.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Advanced Booking Calendar · Advanced Booking Calendarversion=1.7.0 <1.7.0

Published CVSS scores

9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5NVDAV:N/AC:L/Au:N/C:P/I:P/A:P

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-89CWE-89 SQL Injection
T1190Exploit Public-Facing Application

Public exploit references

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo