ReDi Restaurant Reservation <= 21.0307 - Stored Cross-Site Scripting

2021-05-09 00:00

Bastijn Ouwendijk

Strategic Overview

Status

Patched in 21.0426

Affected PluginReDi Restaurant Reservation – Instant Restaurant Booking & Table Reservation System

Affected Version<= 21.0307

CVSS7.2High

CVECVE-2021-24299

View all ReDi Restaurant Reservation – Instant Restaurant Booking & Table Reservation System vulnerabilities

Vulnerability Overview

The ReDi Restaurant Reservation WordPress plugin before 21.0426 provides the functionality to let users make restaurant reservations. These reservations are stored and can be listed on an 'Upcoming' page provided by the plugin. An unauthenticated user can fill in the form to make a restaurant reservation. The form to make a restaurant reservation field called 'Comment' does not use proper input validation and can be used to store XSS payloads. The XSS payloads will be executed when the plugin user goes to the 'Upcoming' page, which is an external website https://upcoming.reservationdiary.eu/ loaded in an iframe, and the stored reservation with XSS payload is loaded.

Technical Analysis

REMEDIATION: Update to version 21.0426, or a newer patched version --- IDENTIFIER: CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

External References

https://www.cve.org/CVERecord?id=CVE-2021-24299 https://www.wordfence.com/threat-intel/vulnerabilities/id/6e0384c0-9b34-4af8-af86-75ef1e8d933b

CVSS Vector

7.2

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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