Mattermost up to 9.11.13/10.5.4/10.6.3/10.7.1 LDAP Search Filter link objectGUID ldap injection

Summaryinfo

A vulnerability marked as problematic has been reported in Mattermost up to 9.11.13/10.5.4/10.6.3/10.7.1. Impacted is an unknown function of the file /api/v4/ldap/groups/{remote_id}/link of the component LDAP Search Filter. This manipulation of the argument objectGUID causes ldap injection. This vulnerability is registered as CVE-2025-4573. Remote exploitation of the attack is possible. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Mattermost up to 9.11.13/10.5.4/10.6.3/10.7.1 and classified as problematic. Affected by this vulnerability is an unknown code of the file /api/v4/ldap/groups/{remote_id}/link of the component LDAP Search Filter. The manipulation of the argument objectGUID with an unknown input leads to a ldap injection vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality. The summary by CVE is:

Mattermost versions 10.7.x <= 10.7.1, 10.6.x <= 10.6.3, 10.5.x <= 10.5.4, 9.11.x <= 9.11.13 fail to properly validate LDAP group ID attributes, allowing an authenticated administrator with PermissionSysconsoleWriteUserManagementGroups permission to execute LDAP search filter injection via the PUT /api/v4/ldap/groups/{remote_id}/link API when objectGUID is configured as the Group ID Attribute.

The weakness was published by Juho Forsén. It is possible to read the advisory at mattermost.com. This vulnerability is known as CVE-2025-4573 since 05/12/2025. The exploitation appears to be easy. The attack can be launched remotely. The exploitation requires an enhanced level of successful authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1505 according to MITRE ATT&CK.

Upgrading to version 9.11.14, 10.5.5, 10.6.4, 10.7.2 or 10.8.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-18095). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Groupware Software

Name

• Mattermost

Version

• 9.11.0
• 9.11.1
• 9.11.2
• 9.11.3
• 9.11.4
• 9.11.5
• 9.11.6
• 9.11.7
• 9.11.8
• 9.11.9
• 9.11.10
• 9.11.11
• 9.11.12
• 9.11.13
• 10.5.0
• 10.5.1
• 10.5.2
• 10.5.3
• 10.5.4
• 10.6.0
• 10.6.1
• 10.6.2
• 10.6.3
• 10.7.0
• 10.7.1

License

• open-source

CPE 2.3info

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CPE 2.2info

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Entryinfo

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