Meeting Room Booking System has an unauthenticated open redirect
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Active
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-601.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| meeting-room-booking-system | mrbs-code | before 1.12.2 | 1.12.2 | Patch available | CNA |
- mrbs-code Vendormeeting-room-booking-system Affected before 1.12.2 Fixed in 1.12.2 Patch available CNA
Remediation
- Fix · CNA mrbs-code (meeting-room-booking-system) Fixed in 1.12.2
Timeline
- 2026-10-02 Threatist record created from CVE-2026-46688
References
More meeting-room-booking-system vulnerabilities
- TI-2026-34096 Meeting Room Booking System has server-side request forgery in import functionality CVSS 4.0HIGH 8.7
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences