CVE-2026-23622
HIGH
GHSA-54v4-4685-vwrj
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Lifecycle Timeline
3Description
Easy!Appointments is a self hosted appointment scheduler. In 1.5.2 and earlier, application/core/EA_Security.php::csrf_verify() only enforces CSRF for POST requests and returns early for non-POST methods. Several application endpoints perform state-changing operations while accepting parameters from GET (or $_REQUEST), so an attacker can perform CSRF by forcing a victim's browser to issue a crafted GET request. Impact: creation of admin accounts, modification of admin email/password, and full admin account takeover.
Analysis
Inadequate CSRF protection in Easy!Appointments 1.5.2 and earlier allows unauthenticated attackers to perform state-changing operations through GET requests, enabling account creation, credential modification, and complete admin account takeover. The vulnerability exists because csrf_verify() only validates POST requests while application endpoints accept parameters via GET or $_REQUEST. …
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Remediation
Within 7 days: Identify all affected systems and apply vendor patches promptly. Verify anti-CSRF tokens and content security policies are enforced.
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External POC / Exploit Code
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