CVE-2026-8789

Easy Appointments <= 3.12.27 - Missing Authorization to Authenticated (Contributor+) Arbitrary Connection Deletion

2026-07-23 16:53
Vamshi Krishna Upadrasta

Strategic Overview

Status
Patched in 3.12.28
Affected Plugin
Easy Appointments
Affected Version
<= 3.12.27
CVSS
8.1High
Weakness type
CWE-863 · Incorrect Authorization
CVE
CVE-2026-8789
View all Easy Appointments vulnerabilities

At a glance

CVE-2026-8789 is a high-severity Incorrect Authorization vulnerability in the Easy Appointments WordPress plugin, affecting versions <= 3.12.27. It carries a CVSS score of 8.1 (reachable over the network; low attack complexity; high integrity, availability impact). Exploitation requires an authenticated account at Contributor level or above. The issue is fixed in version 3.12.28; sites on affected versions should update now. Disclosed July 2026, reported by Vamshi Krishna Upadrasta.

Vulnerability Overview

The Easy Appointments plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check and missing nonce verification on the `ea_delete_multiple_connections` AJAX action in all versions up to, and including, 3.12.27. This makes it possible for authenticated attackers, with Contributor-level access and above, to delete arbitrary connection records from the `wp_ea_connections` table, disrupting the plugin's core booking functionality.

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. A successful exploit has high impact on integrity, availability.

CWE-863: Incorrect Authorization

Reaching this weakness in Easy Appointments <= 3.12.27 takes an account at Contributor level or above. Incorrect authorization means a permission check exists but evaluates the wrong thing, so it passes for callers it was meant to stop.

The action runs for users the code intended to exclude, with the same effect as having no check at all. 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-2026-8789https://www.wordfence.com/threat-intel/vulnerabilities/id/47ed52b3-4bfe-46ce-aabc-7a4647ab7db5https://nvd.nist.gov/vuln/detail/CVE-2026-8789

Related records

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