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

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.

Scores

EPSS (exploitation in 30 days)

0.67% · top 48% of all CVEs (6 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: yes · Technical impact: total

The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.

Weakness

• CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') (opens in a new tab)All about CWE-89 and its CVEs

Affected products

• Cacti · cacti

  • affected < 1.2.31

References (2)

• https://github.com/Cacti/cacti/security/advisories/GHSA-69gg-mjfm-jjpc (opens in a new tab)x_refsource_CONFIRM
• https://github.com/Cacti/cacti/pull/7039 (opens in a new tab)x_refsource_MISC

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2026-39893](https://trackcve.app/badge/CVE-2026-39893.svg)](https://trackcve.app/cve/CVE-2026-39893)

Record last updated 26 Jun 2026, 03:55 UTC.