My Calendar <= 3.7.8 - Unauthenticated SQL Injection via 'mc_auth' and 'mc_host' Parameters
| CVE | CVE-2026-6854 |
|---|---|
| CVSS | 7.5 (High) |
| Publicly Published | July 7, 2026 |
| Last Updated | July 8, 2026 |
| Researcher |
Leonid Semenenko (lsemenenko)
|
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.
Learn more about SQL Injection vulnerabilities and how to prevent them.
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Vulnerability Details for My Calendar – Accessible Event Manager
| Software Type | Plugin |
|---|---|
| Software Slug | my-calendar (view on wordpress.org) |
| Patched? | Yes |
| Remediation | Update to version 3.7.9, or a newer patched version |
| Affected Version |
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| Patched Version |
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Recent vulnerabilities in My Calendar – Accessible Event Manager
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