CVE-2026-15918
Received Received - Intake

Unauthenticated SQL Injection in VikAppointments Service Booking Calendar WordPress Plugin

Publication date: 2026-08-05

Last updated on: 2026-08-05

Assigner: Wordfence

Description
VikAppointments Service Booking Calendar wordpress plugin is vulnerable to unauthenticated SQL injection due to one of the parameters that controls how the public reviews list is sorted is taken from the incoming request and used to build a database query without proper validation or sanitization. Because this value is placed directly into the query, an attacker who is not logged in can inject arbitrary SQL through a normal booking page and read data from the site's database — including sensitive information such as WordPress user credentials. No authentication or special privileges are required

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Meta Information

Published
2026-08-05
Last Modified
2026-08-05
Generated
2026-08-05
AI Q&A
2026-08-05
EPSS Evaluated
N/A
NVD
CVE-2026-15918
EUVD
EUVD-2026-53038

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
vikappointments service_booking_calendar *

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-89 The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.

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Executive Summary

The VikAppointments Service Booking Calendar WordPress plugin has an unauthenticated SQL injection vulnerability. An attacker can exploit this by sending a specially crafted request to a booking page to inject malicious SQL code into a database query. This allows them to read sensitive data from the site's database, including WordPress user credentials, without needing to log in or have special privileges.

Detection Guidance

This vulnerability can be detected by checking if the VikAppointments Service Booking Calendar WordPress plugin is installed and then verifying the version. If the plugin is outdated or vulnerable, inspect network traffic for SQL injection attempts in booking page parameters.

Impact Analysis

This vulnerability can lead to unauthorized access to sensitive data such as WordPress user credentials and other database contents. Attackers could extract personal or confidential information, potentially leading to further attacks like account takeovers or data breaches. The impact includes data theft, privacy violations, and potential compromise of the entire WordPress site.

Compliance Impact

This vulnerability can result in non-compliance with data protection regulations like GDPR and HIPAA. Exposure of personal or sensitive data may lead to legal penalties, fines, and reputational damage due to unauthorized access and potential data leaks. Organizations must address this to maintain compliance and protect user privacy.

Mitigation Strategies

Immediately update the VikAppointments Service Booking Calendar plugin to the latest patched version. If no patch is available, consider disabling or removing the plugin until a fix is released. Monitor database access logs for suspicious queries.

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