Booking for Appointments and Events Calendar - Security Vulnerability (CVE-2026-14311)

Q: Am I affected by this vulnerability?

You are affected if your site runs Booking for Appointments and Events Calendar.

Q: How do I fix it?

Update Booking for Appointments and Events Calendar to the latest available version. Where the vendor has not yet published a fix, remove or disable the plugin until they do.

CVE-2026-14311

Vulnerability CVE-2026-14311 PLUGIN booking-for-appointments-and-events-calendar MEDIUM

The Booking for Appointments and Events Calendar – Amelia plugin for WordPress is vulnerable to unauthorized access and modification of data due to a missing ownership verification on /users/customers/ endpoint in all versions up to, and including, 2.4.4. This makes it possible for authenticated attackers, with wpamelia-provider role, to view and modify arbitrary customers, including password reset. Takeover of WordPress user accounts, with the roles up to Editor, is also possible if that user had made an Amelia booking. This vulnerability affects only the Premium version of the plugin, where the Employee Panel is present.

CVE-2026-14311

MEDIUM CVSS 5.4 Published 2026-09-17 Updated 2026-09-18

AI Risk Elevated (55/100) Active Exploit: No strong signal Published Exploit: No public exploit references Priority: P3 Priority

Severity Band MEDIUM

CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Affected Components 2

Reference Links 2

AI Risk Engine Elevated (55/100)

Exploitability High

Active Exploitation No strong signal

Published Exploit Status No public exploit references

Threat Timeline

2026-09-17 CVE published and first recorded in the threat feed.
2026-09-18 Record updated with latest vulnerability metadata.
2026-09-19 AI technical context refreshed for mitigation and impact guidance.
Now Monitoring for follow-up changes, linked references, and new related CVEs.

AI Context

Machine-generated threat intelligence

AI Updated 54 days ago

AI enriched 54 days ago (2026-09-19 11:48 UTC)

Technical Summary

Potential Impact

Severity is MEDIUM (CVSS 5.4). Depending on deployment context, affected components may be exposed to unauthorized actions or data integrity risk.

Exploitability Assessment

Exploitability is assessed as High based on remote code execution potential.

Primary risk drivers: remote code execution potential

Mitigation Recommendations

Validate affected product versions, prioritize patching, and monitor references for vendor remediation guidance. If immediate patching is not possible, apply compensating controls and limit exposure of vulnerable surfaces.

Detection & Monitoring

Track authentication anomalies, unexpected file writes, and suspicious plugin API activity around affected components.

Business Impact Lens

AI risk score 55/100 (Elevated, High) with priority P3 Priority. Prioritize remediation where affected components process customer data, admin sessions, or Internet-exposed workflows.

Affected Products

Booking for Appointments and Events Calendar PLUGIN · booking-for-appointments-and-events-calendar Affected: <= 2.4.4 Fixed version not specified

Booking for Appointments and Events Calendar – Amelia PLUGIN · booking-for-appointments-and-events-calendar-amelia Affected: >= 0, <= 2.4.4 Fixed version not specified

References

What to do about this

Patch on your next cycle Worth fixing, but not ahead of other work.

Fix it

Update Booking for Appointments and Events Calendar to the latest available version.

Where the vendor has not published a fix yet, disable the plugin until they do.

No Hack Halt control meaningfully contains this one — updating is the remedy. We would rather say so than sell you something that will not help.

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