CVE-2026-46688 MEDIUM

CVE-2026-46688: Meeting Room Booking System has an unauthenticated open redirect

Vendor Meeting-Room-Booking-System
Product mrbs-code
Weakness CWE-601 · Open redirect
Published August 12, 2026
Last update August 12, 2026

CVSS base score

6.9/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

What the vulnerability does

01Description

The Meeting Room Booking System (MRBS) is a PHP-based application for booking meeting rooms. Prior to version 1.12.2, an unauthenticated request can be made to redirect the user to a query-specified location. This allows an attacker to create a specially-crafted URL to an MRBS installation that will cause the user who clicks it to be redirected to the attacker-specified redirect URL, which could be a spoofed MRBS login page, for example. Version 1.12.2 contains a fix. No known workarounds are available.

Key dates

02Disclosure timeline

August 12, 2026 CVE published

Related vulnerabilities

04Related CVE