CVE-2026-6854: 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.
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.
Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-6854
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-68540.27% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 19% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-6854 | coverage & exploitation status | NVD · CVE.org |
Recent advisories for My Calendar
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
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- mediumCVE-2026-13039: The Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered) plugin for Wo…nvd · 2026-07-10
- mediumCVE-2026-9838: The ICS Calendar plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the '…nvd · 2026-07-10
- mediumCVE-2026-12924: The Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered) plugin for Wo…nvd · 2026-07-10
- mediumCVE-2026-15289: The Booking calendar, Appointment Booking System plugin for WordPress is vulnerable to time-ba…nvd · 2026-07-10
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