CVE-2026-46688

Meeting Room Booking System has an unauthenticated open redirect

Published Aug 12, 2026 CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Meeting-room-booking-system
Meeting-room-booking-system mrbs-code
Vendors & Products Meeting-room-booking-system
Meeting-room-booking-system mrbs-code
Type Values Removed Values Added
Description 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.
Title Meeting Room Booking System has an unauthenticated open redirect
Weaknesses CWE-601
References
Metrics cvssV4_0

{'score': 6.9, '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Aug 13, 2026, 1:11 PM
Reserved
May 15, 2026, 9:46 PM
Status
Deferred
Published
Aug 13, 2026, 12:17 AM
Modified
Oct 23, 2026, 7:10 PM