CVE-2022-0482: Alextselegidis/easyappointments Exposure Of Private Personal Information Vulnerability

CRITICAL
Advisory Identifier: GHSA-r6cm-wg48-rh2r
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CVSS 9.1
CWE-863 CWE-359
Published
Advisory Summary

CVE-2022-0482 is a CRITICAL (CVSS 9.1) exposure of private personal information vulnerability (CWE-863: Incorrect Authorization) affecting Alextselegidis/easyappointments libraries in the Packagist ecosystem. The issue involves exposure of private personal information to an unauthorized actor in alextselegidis/easyappointments. Remediation is available by upgrading affected packages to version 1.4.3.

CVE-2022-0482 at a Glance

CVE Identifier CVE-2022-0482
GHSA Identifier GHSA-r6cm-wg48-rh2r
Severity CRITICAL
CVSS v3.1 Base Score 9.1
CWE Classification CWE-863: Incorrect Authorization
Affected Product Alextselegidis/easyappointments
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 9.1

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability None (A:N)

How to Fix CVE-2022-0482

To remediate this vulnerability, upgrade all affected Alextselegidis/easyappointments dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

alextselegidis/easyappointments fixed: 1.4.3 
Upgrade alextselegidis/easyappointments to 1.4.3
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for alextselegidis/easyappointments

How to Check if You Are Affected

To determine whether your application is affected by CVE-2022-0482, inspect your project dependencies for Alextselegidis/easyappointments:

inspect dependencies for alextselegidis/easyappointments

Analyze the terminal output to locate any version of Alextselegidis/easyappointments in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.4.3), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-863: Incorrect Authorization, where the product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. In Alextselegidis/easyappointments, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

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/backend_api/ajax_get_calendar_events 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.

CVE-2022-0482 Affected Alextselegidis/easyappointments Versions

1 component(s)
Fixed Versions:
1.4.3
Product / Package Ecosystem Affected Versions Fixed Version
alextselegidis/easyappointments
 Packagist
< 1.4.3
1.4.3

References

NVD — CVE-2022-0482 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-0482
Security Fix Commit FIX COMMIT
https://github.com/alextselegidis/easyappointments/commit/44af526a6fc5e898bc1e0132b2af9eb3a9b2c466
Alextselegidis/easyappointments Source Repository REPOSITORY
https://github.com/alextselegidis/easyappointments
Alextselegidis/easyappointments Release RELEASE
https://github.com/alextselegidis/easyappointments/releases/tag/1.4.3
huntr.dev/bounties/2fe771ef-b... WEB
https://huntr.dev/bounties/2fe771ef-b615-45ef-9b4d-625978042e26
opencirt.com/hacking/securing-ea... WEB
https://opencirt.com/hacking/securing-easy-appointments-cve-2022-0482
Alextselegidis/easyappointments Security Information SECURITY
http://packetstormsecurity.com/files/166701/Easy-Appointments-Information-Disclosure.html

Frequently Asked Questions

What is CVE-2022-0482?
CVE-2022-0482 is a security vulnerability in Alextselegidis/easyappointments involving Exposure of Private Personal Information to an Unauthorized Actor in alextselegidis/easyappointments under CWE-863: Incorrect Authorization.
Which Alextselegidis/easyappointments versions are affected?
Affected versions include releases prior to 1.4.3 across affected packages: alextselegidis/easyappointments.
What version fixes CVE-2022-0482?
Upgrading to 1.4.3 (or the latest patched release for your respective branch) resolves the vulnerability.
Is alextselegidis/easyappointments affected?
Yes, alextselegidis/easyappointments is affected in releases prior to 1.4.3. Upgrade your dependency to 1.4.3 or later.
What is the CVSS score of CVE-2022-0482?
CVE-2022-0482 has a CVSS v3.1 base score of 9.1 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
What CWE is associated with CVE-2022-0482?
CVE-2022-0482 is classified under CWE-863: Incorrect Authorization (The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.).
How can I check Packagist dependencies for CVE-2022-0482?
Run the dependency tree command: 'inspect dependencies for alextselegidis/easyappointments'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-r6cm-wg48-rh2r",
  "modified" : "2022-04-17T17:13:16Z",
  "published" : "2022-03-10T00:00:40Z",
  "aliases" : [ "CVE-2022-0482" ],
  "summary" : "Exposure of Private Personal Information to an Unauthorized Actor in alextselegidis/easyappointments",
  "details" : "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/backend_api/ajax_get_calendar_events 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.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "alextselegidis/easyappointments"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.4.3"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-0482"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/alextselegidis/easyappointments/commit/44af526a6fc5e898bc1e0132b2af9eb3a9b2c466"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/alextselegidis/easyappointments"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/alextselegidis/easyappointments/releases/tag/1.4.3"
  }, {
    "type" : "WEB",
    "url" : "https://huntr.dev/bounties/2fe771ef-b615-45ef-9b4d-625978042e26"
  }, {
    "type" : "WEB",
    "url" : "https://opencirt.com/hacking/securing-easy-appointments-cve-2022-0482"
  }, {
    "type" : "WEB",
    "url" : "http://packetstormsecurity.com/files/166701/Easy-Appointments-Information-Disclosure.html"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-359", "CWE-863" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-03-10T21:50:52Z",
    "nvd_published_at" : "2022-03-09T11:15:00Z"
  }
}