CVE-2026-39893 Details
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.
A pre-authentication SQL injection vulnerability has been identified in Cacti versions 1.2.30 and prior. The issue arises in the 'graph_view.php' file, where the 'rfilter' request variable is improperly concatenated into a RLIKE SQL clause without adequate sanitization. This vulnerability is accessible without authentication on installations that have guest viewing enabled, allowing unauthorized users to exploit the SQL injection before authentication.
Users can upgrade to Cacti version 1.2.31 or later, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jun 25, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/Cacti/cacti/pull/7039 | [email protected] | Issue TrackingPatch |
| https://github.com/Cacti/cacti/security/advisories/GHSA-69gg-mjfm-jjpc | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-89 | Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| cacti cacti | < 1.2.31 |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 26, 2026 | CVE Modified | CISA-ADP |
| Jun 25, 2026 | CVE Modified | CISA-ADP |
| Jun 25, 2026 | Initial Analysis | [email protected] |
| Jun 24, 2026 | New CVE Received | [email protected] |