Threat intelligence

My Calendar < 3.7.7 - Unauthenticated Denial of Service

CVE-2026-40308 · my-calendar

Important: Seeing this vulnerability listed does not mean your website is affected. Exposure depends on whether you run My Calendar at a vulnerable version. How SiteRespond intelligence works

Vulnerability: My Calendar < 3.7.7 - Unauthenticated Denial of Service
Affected software: my-calendar(Plugin)
Affected versions: < 3.7.7
Authentication: Unauthenticated
Vulnerability type: Denial of service
CVE: CVE-2026-40308
Published: 16 April 2026
CISA KEV: Not listed in CISA KEV at last catalog refresh
Impact: This advisory describes a denial of service issue in the affected software. Review the source advisory and your installed version to assess exposure.
Source: Data imported from Wordfence Intelligence (advisory 9082adc5-508d-47ac-a74a-868e2600e3d6). Methodology and redistribution notes

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