CVE-2026-43946CWE-863

FUXA has an unauthenticated arbitrary tag value disclosure via /api/getTagValue

High · published July 21, 2026

CVSS v4.0
7.7
EPSS
1%
Percentile
46.3
In the wild
Unconfirmed
What it is

FUXA is a web-based Process Visualization (SCADA/HMI/Dashboard) software. Version 1.3.0 has an authorization bypass in the /api/getTagValue endpoint allows unauthenticated access to tag values when the referenced script does not exist. Version 1.3.1 patches the issue.

The record
Technical detail
CVSS v4.0
7.7 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
EPSS
0.00567 · 46.3th percentile
Weakness
CWE-863 · Incorrect Authorization
Published
2026-07-21T21:27Z
EPSS history
Timeline
  • 21 JUL 21:27Z
    FUXA has an unauthenticated arbitrary tag value disclosure via /api/getTagValue
    cvelistv5