CyberRota Analysis
AI-GeneratedEasy!Appointments versions prior to 1.6.0 are vulnerable to a Server-Side Request Forgery (SSRF) due to inadequate validation of the `caldav_url` in the `Caldav::connect_to_server` function, allowing authenticated users to access internal network resources. This vulnerability can lead to exposure of sensitive information from loopback, RFC1918, and link-local addresses, albeit in a semi-blind manner. Organizations using affected versions should prioritize upgrading to 1.6.0 or later to mitigate potential risks associated with this vulnerability.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
Note: these links are listed for security research and verification purposes only.
Original NVD Description
Easy!Appointments is a self hosted appointment scheduler. In versions prior to 1.6.0, `Caldav::connect_to_server` at `application/controllers/Caldav.php:60` hands the request's `caldav_url` to a Guzzle `REPORT` call without scheme or host validation. A logged-in backend user (admin, provider, or secretary) reaches loopback, RFC1918, and link-local hosts on the deployment's network. The Guzzle exception path returns the upstream status code plus ~120 bytes of response body in the JSON `message` field (`Caldav.php:74-78`), so the SSRF is semi-blind. Version 1.6.0 contains a patch.