CVE-2026-40084 – Cacti: Arbitrary File Read via Path Traversal in Report `format_file` Parameter

CVE ID :CVE-2026-40084

Published : June 25, 2026, 10:43 p.m. | 1 hour, 1 minute ago

Description :Cacti is an open source performance and fault management framework. Versions 1.2.30 and prior are vulnerable to Path Traversal through the Report format_file Parameter, causing arbitrary file read. This vulnerability occurs in two stages. In the first stage (stored injection), lib/html_reports.php at line 283 stores $save[‘format_file’] = $post[‘format_file’] directly into the database without any validation. In the second stage (file read), lib/reports.php at line 667 concatenates CACTI_PATH_FORMATS . ‘/’ . $format_file, and line 670 then calls file($format_file), reading arbitrary files from the filesystem. This issue has been fixed in version 1.2.31.

Severity: 0.0 | NA

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