CVE-2022-0421: Five Star Restaurant Reservations < 2.4.12 - Unauthenticated Arbitrary Payment Status Update to Stored XSS

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-11-21 · updated 2026-06-17
Weakness: CWE-116

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

Affected products

Five Star Restaurant Reservations: before 2.4.12 — fixed in 2.4.12

How to fix

Upgrade to a fixed version: Five Star Restaurant Reservations 2.4.12. Check the vendor advisory for mitigations.

References

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