Is CVE-2022-0421 actively exploited?

No active exploitation of CVE-2022-0421 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2022-0421 be exploited remotely?

Yes. CVE-2022-0421 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2022-0421?

CVE-2022-0421 has a CVSS score of 6.1 (MEDIUM).

HOME VULNERABILITIESCVE-2022-0421

MEDIUM

CVE-2022-0421

CWE-116Published: November 21, 2022· Updated: Jun 17, 2026

6.1

CVSS v3.1

Official Description

The Five Star Restaurant Reservations WordPress plugin before 2.4.12 does not have authorisation when changing whether a payment was successful or failed, allowing unauthenticated users to change the payment status of arbitrary bookings. Furthermore, due to the lack of sanitisation and escaping, attackers could perform Cross-Site Scripting attacks against a logged in admin viewing the failed payments

NVD Source

Technical Analysis

CVE-2022-0421 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.