CVE-2026-11992

Easy Appointments <= 3.12.27 - Missing Authorization to Authenticated (Author+) Bulk Appointment Manipulation

2026-07-09 19:10
armx64

Strategic Overview

Status
Patched in 3.12.28
Affected Plugin
Easy Appointments
Affected Version
<= 3.12.27
CVSS
4.3Medium
Weakness type
CWE-862 · Missing Authorization
CVE
CVE-2026-11992
View all Easy Appointments vulnerabilities

At a glance

CVE-2026-11992 is a medium-severity Missing Authorization vulnerability in the Easy Appointments WordPress plugin, affecting versions <= 3.12.27. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Author level or above. The issue is fixed in version 3.12.28; sites on affected versions should update now. Disclosed July 2026, reported by armx64.

Vulnerability Overview

The Easy Appointments plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 3.12.27. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with author-level access and above, to cancel all upcoming appointments site-wide by marking every future appointment stored by the plugin as abandoned. The nonce required to authenticate the cancellation request is printed on the Appointments admin page, which is itself gated only by the edit_posts capability that Authors possess, making the nonce readily accessible to low-privileged users.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user.

CWE-862: Missing Authorization

Reaching this weakness in Easy Appointments <= 3.12.27 takes an account at Author level or above. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.

Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For Easy Appointments the fix is 3.12.28: builds <= 3.12.27 are affected, anything from 3.12.28 onward is not.

Remediation

Update to version 3.12.28, or a newer patched version

How does WordSec protect against this?

Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: Easy Appointments 3.12.28 closes this, and updating the plugin is the step that ends it.

  • Login Security
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-11992https://www.wordfence.com/threat-intel/vulnerabilities/id/eea33d0b-2547-4c51-8c4c-d178d6c8502dhttps://nvd.nist.gov/vuln/detail/CVE-2026-11992

Related records

Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C