Exposure of Private Personal Information to an Unauthorized Actor in alextselegidis/easyappointments

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

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

EPSS

• CVE-2022-0482: 43.75% estimated exploitation activity in the next 30 days; percentile 98.75 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

The software is a booking management system that has a public form to place bookings, and a private area for the calendar and management of services, users, settings, etc. There is a backend API that allows data manipulation, including listing the appointments for a specific time range. This happens on this endpoint: /index.php/backendapi/ajaxgetcalendarevents Unfortunately, there is no authentication / permissions-check on that endpoint, the only required parameters in a POST request are "startDate", "endDate" and "csrfToken". Because the csrfToken can be obtained by any unauthenticated user just visiting the public form (and is valid for the backend as well), any attacker can query the backend API and obtain all sorts of private information about the appointment, in JSON format.

Published by the source

10 Mar 2022, 00:00 UTC

Last modified by the source

3 Feb 2023, 05:06 UTC

Source last checked

26 Oct 2026, 14:05 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-r6cm-wg48-rh2r

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# Patch Next advisory brief: CVE-2022-0482

Advisory: Exposure of Private Personal Information to an Unauthorized Actor in alextselegidis/easyappointments
IDs: CVE-2022-0482, GHSA-r6cm-wg48-rh2r
Record: https://patchnext.com/advisories/cve-2022-0482 (revision 1, source checked 26 Oct 2026, 14:05 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Critical (CVSS 9.1)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: alextselegidis/easyappointments 1.4.3. A vendor fix does not mean a deployment is fixed.

## Affected components
- Packagist alextselegidis/easyappointments: affected < 1.4.3; fixed in 1.4.3

## Suggested inspection (read-only)
- Packagist alextselegidis/easyappointments: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on alextselegidis/easyappointments.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-r6cm-wg48-rh2r (GitHub-reviewed advisory GHSA-r6cm-wg48-rh2r lists affected ranges: Packagist alextselegidis/easyappointments >=0 <1.4.3)

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