GHSA-7V66-C77R-G454
Vulnerability from github – Published: 2026-08-05 15:32 – Updated: 2026-08-05 15:32Cacti's sanitize_sql_column() (lib/functions.php) sanitizes user-supplied ORDER BY column names using the regex preg_replace('/[^a-zA-Z0-9_().]/', '', $column). Because this allowlist retains letters, digits, underscore, parentheses, and dot (intended to support expressions like COUNT(id) and table.column), a payload such as SLEEP(5) passes through completely unmodified. The sanitized value is concatenated directly into raw SQL ORDER BY clauses (which cannot be parameterized) driven by a sort_column GET parameter in at least user_log.php, utilities.php, user_domains.php, and user_group_admin.php, allowing any authenticated Cacti user, regardless of privilege level, to perform time-based blind SQL injection against the Cacti database.
{
"affected": [],
"aliases": [
"CVE-2026-71287"
],
"database_specific": {
"cwe_ids": [
"CWE-89"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-08-05T13:24:53Z",
"severity": "HIGH"
},
"details": "Cacti\u0027s sanitize_sql_column() (lib/functions.php) sanitizes user-supplied ORDER BY column names using the regex `preg_replace(\u0027/[^a-zA-Z0-9_().]/\u0027, \u0027\u0027, $column)`. Because this allowlist retains letters, digits, underscore, parentheses, and dot (intended to support expressions like COUNT(id) and table.column), a payload such as `SLEEP(5)` passes through completely unmodified. The sanitized value is concatenated directly into raw SQL ORDER BY clauses (which cannot be parameterized) driven by a `sort_column` GET parameter in at least user_log.php, utilities.php, user_domains.php, and user_group_admin.php, allowing any authenticated Cacti user, regardless of privilege level, to perform time-based blind SQL injection against the Cacti database.",
"id": "GHSA-7v66-c77r-g454",
"modified": "2026-08-05T15:32:21Z",
"published": "2026-08-05T15:32:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-71287"
},
{
"type": "WEB",
"url": "https://github.com/Cacti/cacti"
},
{
"type": "WEB",
"url": "https://github.com/Cacti/cacti/blob/develop/lib/functions.php"
}
],
"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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