CVE-2026-6854
Received Received - Intake

Time-Based Blind SQL Injection in My Calendar WordPress Plugin

Publication date: 2026-07-08

Last updated on: 2026-07-08

Assigner: Wordfence

Description
The My Calendar – Accessible Event Manager plugin for WordPress is vulnerable to time-based blind SQL Injection via the 'mc_auth' parameter in all versions up to, and including, 3.7.8 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.

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Meta Information

Published
2026-07-08
Last Modified
2026-07-08
Generated
2026-07-08
AI Q&A
2026-07-08
EPSS Evaluated
N/A
NVD
CVE-2026-6854
EUVD
EUVD-2026-42218

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
my_calendar accessible_event_manager to 3.7.8 (inc)

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.

Attack-Flow Graph

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Executive Summary

The My Calendar – Accessible Event Manager plugin for WordPress has a vulnerability known as time-based blind SQL Injection. This occurs via the 'mc_auth' parameter in all versions up to and including 3.7.8. The issue arises because the plugin does not properly escape user-supplied input and does not sufficiently prepare the SQL query. As a result, unauthenticated attackers can inject additional SQL commands into existing queries.

This vulnerability allows attackers to extract sensitive information from the database by manipulating the SQL queries executed by the plugin.

Impact Analysis

This vulnerability can have a significant impact because it allows unauthenticated attackers to extract sensitive information from the database. Since the attack is time-based blind SQL Injection, attackers can retrieve data without direct feedback by measuring response times.

The CVSS score of 7.5 indicates a high severity, meaning the vulnerability can be exploited remotely without any privileges or user interaction, potentially leading to data disclosure.

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