meeting-room-booking-system MRBS up to 1.12.9 LDAP Authentication AuthLdap.php ldap injection

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00+

Summaryinfo

A vulnerability was found in meeting-room-booking-system MRBS up to 1.12.9 and classified as critical. The affected element is an unknown function of the file web/lib/MRBS/Auth/AuthLdap.php of the component LDAP Authentication. Such manipulation leads to ldap injection. This vulnerability is listed as CVE-2026-129132. The attack may be performed from remote. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in meeting-room-booking-system MRBS up to 1.12.9. Affected by this issue is an unknown code of the file web/lib/MRBS/Auth/AuthLdap.php of the component LDAP Authentication. The manipulation with an unknown input leads to a ldap injection vulnerability. Using CWE to declare the problem leads to CWE-90. The product constructs all or part of an LDAP query using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended LDAP query when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. CVE summarizes:

MRBS before 1.13.0 contains an LDAP injection vulnerability in web/lib/MRBS/Auth/AuthLdap.php that interpolates unescaped login usernames into DN search and group-membership filters. Attackers with valid directory credentials outside the required group can submit crafted usernames that make the group filter always true, bypassing access restrictions.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-129132 since 11/13/2026. The exploitation is known to be easy. The attack may be launched remotely. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1505.

By approaching the search of inurl:web/lib/MRBS/Auth/AuthLdap.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 1.13.0 eliminates this vulnerability.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 4.2
CNA Vector (VulnCheck): 🔒

CVSSv2info

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

Exploitinginfo

Class: Ldap injection
CWE: CWE-90 / CWE-74 / CWE-707
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Google Hack: 🔒
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 1.13.0

Timelineinfo

11/13/2026 Advisory disclosed
11/13/2026 +0 days CVE reserved
11/13/2026 +0 days VulDB entry created
11/13/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Status: Confirmed

CNA: VulnCheck
CVE: CVE-2026-129132 (🔒)

GCVE (CVE): GCVE-0-2026-129132
GCVE (VulDB): GCVE-100-437168

Entryinfo

Created: 11/13/2026 17:44
Changes: 11/13/2026 17:44 (77)
Complete: 🔍
Cache ID: 216::103

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