My Calendar – Accessible Event Manager: Broken access control

My Calendar – Accessible Event Manager is affected by broken access control. The vulnerable path is reachable without authentication. A successful request can reach data or an operation that should be restricted to another user or a more privileged role. The published affected range is <= 3.7.14.

CVE / CNA score 5.3 CVSS 3.1 · security@wordfence.com

NVD score Pending NVD has not published its own CVSS assessment.

Component: My Calendar – Accessible Event Manager
Plugin slug: my-calendar
Affected: <= 3.7.14
Safe version: See mitigation notes
Published: Jul 02, 2026
Weakness: CWE-639 — Authorization Bypass Through User-Controlled Key

This CVE was published Jul 02, 2026 and is one of 14 known issues for this plugin.

What to do

Update, patch or deactivate.

No fixed release is identified. Update My Calendar – Accessible Event Manager when a release after 3.7.14 becomes available; until then, disable and remove it when the site's risk warrants. The official upstream changelog lists version 3.7.17, which is newer than the published affected range. Its changelog does not clearly confirm this specific fix, so it is not counted as a known-safe release.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical description

The My Calendar – Accessible Event Manager plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 3.7.14 via the 'vcal' parameter due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to enumerate occurrence IDs and access the full iCalendar export of non-public, draft, trashed, and personal calendar events, disclosing sensitive event metadata including titles, descriptions, dates, locations, organizer and host details, permalinks, and related calendar metadata.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

References

Primary and upstream sources

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