CVE-2026-40084

MEDIUM 6.5

Cacti: Arbitrary File Read via Path Traversal in Report `format_file` Parameter

CVSS Score

6.5

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-22
Vendor	cacti
Product	cacti
Published	Jun 25, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Affected Versions

Cacti / cacti

< 1.2.31

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/Cacti/cacti/security/advisories/GHSA-mjvw-mhj5-9jcj github.com: https://github.com/Cacti/cacti/commit/4c09efaebf3a9faec66969d0b5c4aceaf397f37f