CVE-2022-0694: The Advanced Booking Calendar WordPress plugin before 1.7.0 does not validate and escape the calendar paramete

Q: How do I fix CVE-2022-0694?

advanced booking calendar: upgrade to 1.7.0. Exact commands for each OS are on this page.

Q: Is CVE-2022-0694 being exploited?

CVE-2022-0694 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2022-0694 affect?

CVE-2022-0694 affects advanced booking calendar. Severity is critical (CVSS 9.8). The Advanced Booking Calendar WordPress plugin before 1.7.0 does not validate and escape the calendar parameter before using it in a SQL statement via the abc_booking_getSingleCalendar AJAX action (available to both unauthenticated and auth

Q: How urgent is CVE-2022-0694?

Priority 64/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

CRITICAL 9.8REMOTEUPGRADE

CVE-2022-0694 is a critical-severity flaw (CVSS 9.8) affecting advanced booking calendar. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Advanced Booking Calendar WordPress plugin before 1.7.0 does not validate and escape the calendar parameter before using it in a SQL statement via the abc_booking_getSingleCalendar AJAX action (available to both unauthenticated and authenticated users), leading to an unauthenticated SQL injection

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.8% (top 21%)
CISA exploited list	No
Weakness	CWE-89
Published	2022-03-21
Last modified	2026-06-17

Publisher (CNA): WPScan · Vendor: elbtide

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-03-21 19:15 UTCPublished CVE record published
2026-06-17 04:21 UTCUpdated Record last modified

elbtide advanced booking calendar UPGRADE

Affected: < 1.7.0

Fixed in: 1.7.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy advanced-booking-calendar || rpm -q advanced-booking-calendar || advanced-booking-calendar --version

2. UPGRADE to 1.7.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade advanced-booking-calendar

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade advanced-booking-calendar

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2022-0694?

advanced booking calendar: upgrade to 1.7.0. Exact commands for each OS are on this page.

Is CVE-2022-0694 being exploited?

CVE-2022-0694 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2022-0694 affect?

CVE-2022-0694 affects advanced booking calendar. Severity is critical (CVSS 9.8). The Advanced Booking Calendar WordPress plugin before 1.7.0 does not validate and escape the calendar parameter before using it in a SQL statement via the abc_booking_getSingleCalendar AJAX action (available to both unauthenticated and auth

How urgent is CVE-2022-0694?

Priority 64/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

WordPress vulnerabilities

Related CVEs

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References

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