Vulnerability Intelligence Report
Cacti: Pre-authentication SQL injection via rfilter RLIKE clause in graph_view.php
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.
No Active Exploit Signals
CVSS Base Score
9.8
CRITICAL
Exploitability:3.9
Impact Score:5.9
EPSS Probability:0.38%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
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Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-89 ↗CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Cacti | cacti | < 1.2.31 (affected) |
Threat Intelligence Signals
EPSS Score
0.379%
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | GitHub, Inc. · Vendor · USA |
| Reserved | 2026-04-07T20:32:03 |
| Published | 2026-06-24T21:45:34 |
| Last Updated | 2026-06-26T03:55:27 |
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