CVE-2026-84860 PUBLISHED

Scada-LTS DWR Authorization Bypass - Systemic

Assigner: tenable
Reserved: 02.09.2026 Published: 16.09.2026 Updated: 16.09.2026

ScadaLTS 2.8.1-release-candidate build 0 is affected by anĀ Authorization Bypass

Spring Security gates DWR endpoints by URL path pattern, but DWR itself dispatches method calls based on the POST body parameters c0-scriptName and c0-methodName. The crossDomainSessionSecurity setting in web.xml is set to false, which disables DWR's built-in origin validation. This means any authenticated user can invoke any DWR method (regardless of the URL-based access control) by sending their request to a URL they are permitted to access (e.g. MiscDwr.initializeLongPoll.dwr) while targeting a restricted class in the POST body.

This is the systemic root cause that enables multiple other findings to be exploited as a low privilege user.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 8.8

Product Status

Vendor Scada-LTS
Product Scada-LTS
Versions Default: unaffected
  • Version 2.8.1 is affected

References