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

Published Aug 12, 2026
·
Updated

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.

Affected Software

1 affected component
MRBS<1.12.2

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Meeting Room Booking System (MRBS) to a version that resolves this vulnerability.

    Fixed in 1.12.2

Event History

Aug 12, 2026
CVE Published
via MITRE·11:30 PM
Data Sourced
via MITRE·11:30 PM
DescriptionWeakness
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Frequently Asked Questions

1

What is the severity of CVE-2026-46688?

CVE-2026-46688 has a risk rating of 30, indicating a significant security concern.

2

How do I fix CVE-2026-46688?

To fix CVE-2026-46688, update your Meeting Room Booking System to version 1.12.2 or later.

3

What type of vulnerability is CVE-2026-46688?

CVE-2026-46688 is an unauthenticated open redirect vulnerability in the Meeting Room Booking System.

4

What impact does CVE-2026-46688 have?

CVE-2026-46688 allows attackers to redirect users to malicious locations via specially-crafted URLs.

5

Who is affected by CVE-2026-46688?

All users of the Meeting Room Booking System prior to version 1.12.2 are affected by CVE-2026-46688.

Company

Resources

Contact

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