CVE-2026-19406Network attack vector

Cross-user booking disclosure via missing ownership check

Published Aug 19, 2026 · Updated Aug 19, 2026

Improper authorization in Easy Appointments for WordPress before 4.0.1 allows remote authenticated users to read other users' bookings via REST. The appointment-listing REST handler does not scope results to records owned by the requesting account and returns site-wide booking data, including customer names, schedules, and statuses. Exploitation requires contributor-level access and supports cross-user disclosure; the published CVE records describe confidentiality impact only for this issue.

CVSS severity2.7
Low
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authorization in Easy Appointments for WordPress before 4.0.1 allows remote authenticated users to read other users' bookings via REST. The appointment-listing REST handler does not scope results to records owned by the requesting account and returns site-wide booking data, including customer names, schedules, and statuses. Exploitation requires contributor-level access and supports cross-user disclosure; the published CVE records describe confidentiality impact only for this issue.

The record

CVE
CVE-2026-19406
Published
Aug 19, 2026
Updated
Aug 19, 2026
Vendor
Alex Tselegidis
Product
Easy!Appointments for WordPress
Classifications
CWE-200, T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 19, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 19, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.12.28 <4.0.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Alex Tselegidis · Easy!Appointments for WordPressversion=3.12.28 <4.0.1

Published CVSS scores

2.7CISA-ADPCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1213Data from Information Repositories

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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