meeting-room-booking-system MRBS up to 1.12.1 Redirect redirect

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.1$0-$5k4.53

Summaryinfo

A vulnerability categorized as problematic has been discovered in meeting-room-booking-system MRBS up to 1.12.1. This affects an unknown function of the component Redirect Handler. Executing a manipulation can lead to redirect. This vulnerability is registered as CVE-2026-46688. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in meeting-room-booking-system MRBS up to 1.12.1. It has been declared as problematic. This vulnerability affects an unknown functionality of the component Redirect Handler. The manipulation with an unknown input leads to a redirect vulnerability. The CWE definition for the vulnerability is CWE-601. A web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks. As an impact it is known to affect integrity. CVE summarizes:

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.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-46688 since 05/15/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1204.001.

Upgrading to version 1.12.2 eliminates this vulnerability.

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Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Redirect
CWE: CWE-601
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: MRBS 1.12.2

Timelineinfo

05/15/2026 CVE reserved
08/12/2026 +89 days VulDB entry created
08/13/2026 +0 days Advisory disclosed
08/13/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-46688 (🔒)
GCVE (CVE): GCVE-0-2026-46688
GCVE (VulDB): GCVE-100-389320

Entryinfo

Created: 08/13/2026 01:56
Changes: 08/13/2026 01:56 (55)
Complete: 🔍
Cache ID: 216::103

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