Koha up to 24.11.11/25.05.6/25.11.0 suggestion.pl displayby sql injection

Summaryinfo

A vulnerability identified as critical has been detected in Koha up to 24.11.11/25.05.6/25.11.0. This impacts an unknown function of the file /cgi-bin/koha/suggestion/suggestion.pl. This manipulation of the argument displayby causes sql injection. The identification of this vulnerability is CVE-2026-31844. It is possible to initiate the attack remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Koha up to 24.11.11/25.05.6/25.11.0. It has been declared as critical. Affected by this vulnerability is some unknown functionality of the file /cgi-bin/koha/suggestion/suggestion.pl. The manipulation of the argument displayby with an unknown input leads to a sql injection vulnerability. The CWE definition for the vulnerability is CWE-89. The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

An authenticated SQL Injection vulnerability (CWE-89) exists in the Koha staff interface in the /cgi-bin/koha/suggestion/suggestion.pl endpoint due to improper validation of the displayby parameter used by the GetDistinctValues functionality. A low-privileged staff user can inject arbitrary SQL queries via crafted requests to this parameter, allowing execution of unintended SQL statements and exposure of sensitive database information. Successful exploitation may lead to full compromise of the backend database, including disclosure or modification of stored data.

The weakness was shared by Raximov Shukrulloh. It is possible to read the advisory at bugs.koha-community.org. This vulnerability is known as CVE-2026-31844 since 03/09/2026. The exploitation appears to be easy. The attack can be launched remotely. A single authentication is required for exploitation. 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 24.11.12, 25.05.07 or 25.11.01 eliminates this vulnerability.

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Productinfo

Name

• Koha

Version

• 24.11.0
• 24.11.1
• 24.11.2
• 24.11.3
• 24.11.4
• 24.11.5
• 24.11.6
• 24.11.7
• 24.11.8
• 24.11.9
• 24.11.10
• 24.11.11
• 25.0
• 25.05.0
• 25.05.1
• 25.05.2
• 25.05.3
• 25.05.4
• 25.05.5
• 25.05.6
• 25.1
• 25.2
• 25.3
• 25.4
• 25.5
• 25.6
• 25.7
• 25.8
• 25.9
• 25.10
• 25.11.0

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