What’s Vulnerable › Vulnerabilities

CVE-2022-0694: Advanced Booking Calendar < 1.7.0 - Unauthenticated SQL Injection

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-03-21 · updated 2026-06-17
• Weakness: CWE-89

Description

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

Affected products

• Advanced Booking Calendar: before 1.7.0 — fixed in 1.7.0

How to fix

Upgrade to a fixed version: Advanced Booking Calendar 1.7.0. Check the vendor advisory for mitigations.

References

• https://plugins.trac.wordpress.org/changeset/2682086
• https://wpscan.com/vulnerability/990d1b0a-dbd1-42d0-9a40-c345407c6fe0
• https://plugins.trac.wordpress.org/changeset/2682086
• https://wpscan.com/vulnerability/990d1b0a-dbd1-42d0-9a40-c345407c6fe0

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