GHSA-Q274-QF66-4HQ6
Vulnerability from github – Published: 2026-08-05 15:32 – Updated: 2026-08-05 15:32Koha's guided report builder (reports/guided_reports.pl) reads the order_by CGI parameter and, for each value, a dynamically-named {order}_ovalue parameter, and concatenates both directly into an SQL ORDER BY clause with no allowlist or validation: my @order_by = $input->multi_param('order_by'); foreach my $order (@order_by) { my $value = $input->param($order . "_ovalue"); $query_orderby = " ORDER BY $order $value"; }. The resulting string is appended verbatim to the final query in C4::Reports::Guided ($query .= $orderby;) with no escaping. Since ORDER BY columns cannot be bound via prepared-statement placeholders, this requires an explicit allowlist, which does not exist. Any staff account with the low-privilege create_reports or execute_reports permission (commonly granted to non-admin library staff) can perform time-based blind SQL injection against the Koha database, which stores patron PII and staff/LDAP credentials.
{
"affected": [],
"aliases": [
"CVE-2026-71288"
],
"database_specific": {
"cwe_ids": [
"CWE-89"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-08-05T13:24:53Z",
"severity": "HIGH"
},
"details": "Koha\u0027s guided report builder (reports/guided_reports.pl) reads the `order_by` CGI parameter and, for each value, a dynamically-named `{order}_ovalue` parameter, and concatenates both directly into an SQL ORDER BY clause with no allowlist or validation: `my @order_by = $input-\u003emulti_param(\u0027order_by\u0027); foreach my $order (@order_by) { my $value = $input-\u003eparam($order . \"_ovalue\"); $query_orderby = \" ORDER BY $order $value\"; }`. The resulting string is appended verbatim to the final query in C4::Reports::Guided (`$query .= $orderby;`) with no escaping. Since ORDER BY columns cannot be bound via prepared-statement placeholders, this requires an explicit allowlist, which does not exist. Any staff account with the low-privilege create_reports or execute_reports permission (commonly granted to non-admin library staff) can perform time-based blind SQL injection against the Koha database, which stores patron PII and staff/LDAP credentials.",
"id": "GHSA-q274-qf66-4hq6",
"modified": "2026-08-05T15:32:21Z",
"published": "2026-08-05T15:32:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-71288"
},
{
"type": "WEB",
"url": "https://github.com/Koha-Community/Koha"
},
{
"type": "WEB",
"url": "https://github.com/Koha-Community/Koha/blob/master/reports/guided_reports.pl"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
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