Koha Community up to 24.11.16/25.05.11/25.11.5/26.05.0 Reports issues_avg_stats.pl calculate Column sql injection

Summaryinfo

A vulnerability classified as critical has been found in Koha Community Koha up to 24.11.16/25.05.11/25.11.5/26.05.0. Affected by this vulnerability is the function calculate of the file reports/issues_avg_stats.pl of the component Reports Module. This manipulation of the argument Column causes sql injection. This vulnerability is registered as CVE-2026-70371. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability has been found in Koha Community Koha up to 24.11.16/25.05.11/25.11.5/26.05.0 and classified as critical. Affected by this vulnerability is the function calculate of the file reports/issues_avg_stats.pl of the component Reports Module. The manipulation of the argument Column 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:

Koha's reports/issues_avg_stats.pl builds dynamic SQL in sub calculate by concatenating several user-controlled request parameters directly into the query string. The Line and Column parameters are not validated against any whitelist and land verbatim in identifier positions (SELECT DISTINCTROW, GROUP BY, ORDER BY), and each Filter slot is concatenated raw into single-quoted LIKE, BETWEEN, and comparison fragments with no bound parameters. An authenticated staff user holding the reports module permission can inject arbitrary SQL and read any table reachable by the Koha database user, including borrowers (password hashes, two-factor secrets, personal data), api_keys, and sessions.

The advisory is shared at bugs.koha-community.org. This vulnerability is known as CVE-2026-70371 since 08/04/2026. The exploitation appears to be easy. The attack can be launched remotely. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1505 for this issue.

Upgrading to version 24.11.17, 25.05.12, 25.11.06 or 26.05.01 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• Koha Community

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
• 24.11.12
• 24.11.13
• 24.11.14
• 24.11.15
• 24.11.16
• 25.05.0
• 25.05.1
• 25.05.2
• 25.05.3
• 25.05.4
• 25.05.5
• 25.05.6
• 25.05.7
• 25.05.8
• 25.05.9
• 25.05.10
• 25.05.11
• 25.11.0
• 25.11.1
• 25.11.2
• 25.11.3
• 25.11.4
• 25.11.5
• 26.05

CPE 2.3info

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CPE 2.2info

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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