Vulnerability Report

CVE-2026-39938

Title: Cacti Unauthenticated Local File Inclusion

Arbitrary File Access

Proof Of Concept

PoC Available for CVE-2026-39938

CWE Category CWE-22

Published Date Jun 24, 2026

Modified Date Jun 26, 2026

Exploit Status Available

Score 9.8 CVSS v3.1

Exploit Probability (EPSS)

1.31%

Vulnerability Summary

CVE-2026-39938: Cacti is an open source performance and fault management framework. Versions 1.2.30 and prior have unauthenticated LFI through graph_theme and rrdtool IPC serialization hardening. This issue has been resolved in version 1.2.31.

Impacted Vendors

the_cacti_group 1

cacti 1

Reference Links

https://github.com/Cacti/cacti/commit/9871f0cef9af285398d558c9b3188d5977e01a04 https://github.com/Cacti/cacti/security/advisories/GHSA-rm7p-qcqm-x5m6

CVSS v3.1

Source Entity [email protected]

Severity CRITICAL

9.8

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

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

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-39938 Exploits & PoCs (Proof Of Concept)

GitHub https://github.com/Polosss/By-Poloss..-..CVE-2026-39938

View Code

June 26, 2026 MODIFIED

Vulnerability data updated via NVD.

June 25, 2026 MODIFIED

Vulnerability data updated via NVD.

June 25, 2026 MODIFIED

Vulnerability data updated via NVD.

June 24, 2026 MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector NETWORK

Complexity LOW

Privileges N/A

Interaction NONE

CVSS Vector String


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

Affected Stack

No specific products linked.