CVE-2026-39955

CRITICAL

Cacti has Pre-Authentication SQL Injection via unanchored FILTER_VALIDATE_REGEXP in graph_view.php

Title source: cna

Description

Cacti is an open source performance and fault management framework. Versions 1.2.30 and prior have pre-authentication SQL Injection via unanchored FILTER_VALIDATE_REGEXP in graph_view.php. This issue has been fixed in version 1.2.31.

References (2)

Core 2

Core References

X_Refsource_Confirm x_refsource_confirm

https://github.com/Cacti/cacti/security/advisories/GHSA-gp82-qhrg-crv7

X_Refsource_Misc x_refsource_misc

https://github.com/Cacti/cacti/commit/4c09efaebf3a9faec66969d0b5c4aceaf397f37f

View Writeup ZIP pw:eip

Scores

CVSS v3 9.8

EPSS 0.0035

EPSS Percentile 27.2%

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