Vulnerability · Published Aug 12, 2026 · Assigned by GitHub_M
CVE-2026-46688Meeting Room Booking System has an unauthenticated open redirect
Medium 6.9
In plain English
A medium-severity open redirect in mrbs-code from meeting-room-booking-system. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 37% of all known vulnerabilities).
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| meeting-room-booking-system | mrbs-code | < 1.12.2 |
Weakness: CWE-601 · 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