CVE-2026-39893

CRITICAL

Cacti: Pre-authentication SQL injection via rfilter RLIKE clause in graph_view.php

Title source: cna
STIX 2.1

Description

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.

References (2)

Core 2
Core References
X_Refsource_Misc x_refsource_misc
https://github.com/Cacti/cacti/pull/7039

Scores

CVSS v3 9.8
EPSS 0.0040
EPSS Percentile 32.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact total

Details

CWE
CWE-89
Status published
Products (2)
cacti/cacti < 1.2.31
Cacti/cacti < 1.2.31
Published Jun 24, 2026
Tracked Since Jun 25, 2026