Vulnerability · Published Jul 21, 2026 · Assigned by GitHub_M
CVE-2026-43946FUXA has an unauthenticated arbitrary tag value disclosure via /api/getTagValue
High 7.7
In plain English
A high-severity incorrect authorization in FUXA from frangoteam. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 47% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 4.0)7.7High
Exploit odds (30 days)0.6%top 52.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | fuxa-server | 1.3.1 | GHSA-fwcm-rqvw-j3p7 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| frangoteam | FUXA | = 1.3.0 |
Weakness: CWE-863 · 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
References
- https://github.com/frangoteam/FUXA/security/advisories/GHSA-fwcm-rqvw-j3p7 x_refsource_CONFIRM
- https://github.com/frangoteam/FUXA/pull/2260 x_refsource_MISC
- https://github.com/frangoteam/FUXA/commit/78534da61a91613712b44bb63c8d7da8c5df5ca4 x_refsource_MISC
- https://github.com/frangoteam/FUXA/releases/tag/v1.3.1 x_refsource_MISC