How severe is GHSA-r6cm-wg48-rh2r?

GHSA-r6cm-wg48-rh2r has a CVSS score of 9.1/10, rated CRITICAL. Immediate patching is strongly recommended.

Which packages are affected by GHSA-r6cm-wg48-rh2r?

GHSA-r6cm-wg48-rh2r affects the following packages: alextselegidis/easyappointments (Packagist). Ecosystems affected: Packagist.

How do I fix GHSA-r6cm-wg48-rh2r?

Update alextselegidis/easyappointments to version 1.4.3 or later. Run your dependency manager's update command and verify no transitive dependencies pin the vulnerable version. Use O3 Security's SCA scanner to confirm the fix is applied across your entire dependency tree.

Is GHSA-r6cm-wg48-rh2r actively exploited in the wild?

Yes. There are 5 known exploit references for GHSA-r6cm-wg48-rh2r, including 1 documented proof-of-concept exploit on Exploit-DB and 3 in-the-wild exploitations observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for GHSA-r6cm-wg48-rh2r?

GHSA-r6cm-wg48-rh2r has an EPSS (Exploit Prediction Scoring System) score of 90.8%, placing it in the 100th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. A score above 50% indicates significantly elevated exploitation risk — immediate patching is strongly recommended.

What type of vulnerability is GHSA-r6cm-wg48-rh2r?

GHSA-r6cm-wg48-rh2r is classified as CWE-359 (CWE-359), CWE-863 (CWE-863). These weakness types describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

Is there exploit tooling available for GHSA-r6cm-wg48-rh2r?

A Nuclei detection template exists for GHSA-r6cm-wg48-rh2r, meaning automated scanners can fingerprint it. Public exploit tooling significantly increases real-world risk — prioritize patching and ensure detection coverage. Exploit tooling should only ever be used in isolated, authorized testing environments.

When was GHSA-r6cm-wg48-rh2r published, and has it been updated?

GHSA-r6cm-wg48-rh2r was published on March 10, 2022 and was last updated on February 19, 2024. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🐘 Packagist

GHSA-r6cm-wg48-rh2r

CRITICAL

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

Also known asCVE-2022-0482

Published

Mar 10, 2022

Updated

Feb 19, 2024

Affected

1 pkg

Patched

1 / 1

Exploits

5 known

EPSS Exploitation Probability

via FIRST.org ↗

90.8%probability of exploitation in next 30 days

Very High Risk100th percentile0.00%

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Blast Radius

1 pkg affected

🐘alextselegidis/easyappointments

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

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.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🐘Packagist	`alextselegidis/easyappointments`	all versions	1.4.3

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

EDB-50871webappsphp

Easy Appointments 1.4.2 - Information Disclosure

by Alexandre ZANNI · Apr 19, 2022

Exploit-DB Source

Frequently Asked Questions

O3 Security · Impact-Aware SCA

Is GHSA-r6cm-wg48-rh2r in your stack?

O3 detects GHSA-r6cm-wg48-rh2r across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

Scan my stack How O3 SCA works

CVSS Score

9.1/10

CVSS v3 base score

Vector breakdown

AV:Attack Vector

Network

AC:Attack Complexity

Low

PR:Privileges Required

None

UI:User Interaction

None

S:Scope

Unchanged

C:Confidentiality

High

I:Integrity

High

A:Availability

None

Raw vector

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

CWE Classification

CWE-359CWE-359 CWE-863CWE-863

Weaponization

OpenSSF Scorecard

Package health score

easyappointments

4.7/10

Maintained10/10

Code-Review0/10

Branch-Protection0/10

Assessed Jun 8, 2026

Timeline

Disclosed

Mar 10, 2022

First exploit

Apr 19, 2022

Last updated

Feb 19, 2024

Identifiers

GHSA-r6cm-wg48-rh2r

References

Advisorynvd.nist.gov Webgithub.com Webgithub.com Webhuntr.dev Webopencirt.com Webpacketstormsecurity.com Packagegithub.com

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