CVE-2026-15289

MEDIUM

Booking calendar, Appointment Booking System <= 3.2.17 - Unauthenticated Time-Based SQL Injection via 'wpdevart_id'

Title source: cna
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2026-15289. PoCs published by incogbyte.

AI-analyzed exploit summary This repository contains a functional proof-of-concept for CVE-2026-15289, an unauthenticated blind SQL injection vulnerability in the WordPress Booking Calendar plugin (wpdevart) <= 3.2.17. The exploit demonstrates boolean-based blind SQLi via the `wpdevart_id` parameter, allowing attackers to extract arbitrary database contents.

Description

The Booking calendar, Appointment Booking System plugin for WordPress is vulnerable to time-based SQL Injection via the ‘wpdevart_id’ parameter in all versions up to, and including, 3.2.17 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. In order to exploit the vulnerability, the Pro version of the plugin must be installed and activated, with the 'Delete previous dates' option checked.

Exploits (1)

github WORKING POC 4 stars
by incogbyte · pythonpoc
https://github.com/incogbyte/wp-cve-exploits/tree/main/CVE-2026-15289

This repository contains a functional proof-of-concept for CVE-2026-15289, an unauthenticated blind SQL injection vulnerability in the WordPress Booking Calendar plugin (wpdevart) <= 3.2.17. The exploit demonstrates boolean-based blind SQLi via the `wpdevart_id` parameter, allowing attackers to extract arbitrary database contents.

Classification
Working Poc 100%
Attack Type
Sqli
Complexity
Moderate
Reliability
Reliable
Target: WordPress Booking Calendar, Appointment Booking System (wpdevart) <= 3.2.17
No auth needed
Prerequisites: Target must have a page with the plugin's booking calendar shortcode · Calendar must have 'Delete previous dates' setting enabled · Calendar ID must be known or guessable
mistral-large-3 · analyzed Jul 17, 2026 Full analysis →

Scores

CVSS v3 5.9
EPSS 0.0035
EPSS Percentile 27.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-89
Status published
Products (1)
wpdevart/Booking calendar, Appointment Booking System < 3.2.17
Published Jul 10, 2026
Tracked Since Jul 10, 2026