CVE-2026-2262

High

Published: 18 April 2026

Published

18 April 2026

Modified

22 April 2026

KEV Added

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Patch

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CVSS Score 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Score 0.2911 96.6th percentile

Risk Priority 32 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-2262 is a high-severity Exposure of Sensitive Information to an Unauthorized Actor (CWE-200) vulnerability in Wordpress (inferred from references). Its CVSS base score is 7.5 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 3.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 AC-14 (Permitted Actions Without Identification or Authentication) and AC-3 (Access Enforcement).

Threat & Defense at a Glance

What attackers do: exploitation maps to Exploit Public-Facing Application (T1190). What defenders deploy: see the NIST 800-53 controls recommended below.

Threat & Defense Details

Mitigating Controls (NIST 800-53 r5)AI

AC-14 Permitted Actions Without Identification or Authentication good match

prevent

Explicitly authorizes specific actions performable without identification or authentication, directly preventing unauthenticated access to sensitive appointment data via the REST API endpoint with '__return_true' permission callback.

AC-3 Access Enforcement good match

prevent

Enforces approved authorizations for logical access to information and resources, addressing the lack of authentication and authorization checks on the vulnerable '/wp-json/wp/v2/eablocks/ea_appointments/' endpoint.

AC-6 Least Privilege good match

prevent

Employs least privilege to restrict access to only necessary authorized actions, mitigating the unrestricted access granted by the plugin's permission callback misconfiguration exposing customer data.

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.

attack.mitre.org →

Why these techniques?

The CVE describes a misconfigured public REST API endpoint in a WordPress plugin that bypasses all auth checks, directly enabling remote unauthenticated exploitation of a public-facing web application for sensitive data access.

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1

NVD Description

The Easy Appointments plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 3.12.21 via the `/wp-json/wp/v2/eablocks/ea_appointments/` REST API endpoint. This is due to the endpoint being registered with `'permission_callback' => '__return_true'`, which allows…

access without any authentication or authorization checks. This makes it possible for unauthenticated attackers to extract sensitive customer appointment data including full names, email addresses, phone numbers, IP addresses, appointment descriptions, and pricing information.

Deeper analysisAI

CVE-2026-2262 is a sensitive information exposure vulnerability affecting the Easy Appointments plugin for WordPress in all versions up to and including 3.12.21. The issue resides in the `/wp-json/wp/v2/eablocks/ea_appointments/` REST API endpoint, which is registered with a `'permission_callback' => '__return_true'` setting. This configuration bypasses all authentication and authorization checks, enabling unauthorized access to sensitive data stored by the plugin.

Unauthenticated attackers can exploit this vulnerability remotely with low complexity and no privileges required, as indicated by the CVSS v3.1 base score of 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N) and associated CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor). Successful exploitation allows extraction of customer appointment data, including full names, email addresses, phone numbers, IP addresses, appointment descriptions, and pricing information.

Mitigation details are reflected in the provided WordPress plugin trac references, which highlight the vulnerable code in `ea-blocks/ea-blocks.php` at lines 141 and 190 across affected tags like 3.12.19. Key changesets, such as 3485692 and the comparison between tags 3.12.21 and 3.12.22, indicate that updating to version 3.12.22 or later addresses the permission callback misconfiguration.