Vulnerability Report

CVE-2026-39893

Title: Cacti SQL Injection via rfilter parameter

SQLi

Proof Of Concept

No public PoC currently indexed for CVE-2026-39893.

CWE Category CWE-89

Published Date Jun 24, 2026

Modified Date Jun 26, 2026

Exploit Status Not Found

Score 9.8 CVSS v3.1

Exploit Probability (EPSS)

0.40%

Vulnerability Summary

CVE-2026-39893: Cacti is an open source performance and fault management framework. In versions 1.2.30 and prior, the rfilter request variable was concatenated into a RLIKE SQL clause without sanitization. The endpoint does not require authentication (graph viewing supports guest access via the configured guest user), so the SQLi was reachable pre-auth on installs with guest viewing enabled. This issue was fixed in version 1.2.31.

Impacted Vendors

the_cacti_group 1

cacti 1

Reference Links

https://github.com/Cacti/cacti/pull/7039 https://github.com/Cacti/cacti/security/advisories/GHSA-69gg-mjfm-jjpc

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-2026-39893 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

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.