---
id: CVE-2026-84860
title: "ScadaLTS 2.8.1-release-candidate build 0 is affected by an\_Authorization Bypass\n\n\n\nSpring Security gates DWR endpoints by URL path pattern, but DWR itself dispatches method calls based on the POST body parameters c0-scriptName and c0-met…"
summary: "ScadaLTS 2.8.1-release-candidate build 0 is affected by an\_Authorization Bypass\n\n\n\nSpring Security gates DWR endpoints by URL path pattern, but DWR itself dispatches method calls based on the POST body parameters c0-scriptName and c0-met…"
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-639
vendor: Scada-LTS
product: Scada-LTS
affected:
  - Scada-LTS 2.8.1
published: '2026-09-16'
updated: '2026-09-18'
sourceUpdated: '2026-09-18T19:18:42.907'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-84860'
references:
  - url: 'https://www.tenable.com/security/research/tra-2026-60'
    label: vulnreport@tenable.com
tags:
  - nvd
  - cve.org
epss: 0.00482
epssPercentile: 0.38951
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-17T18:36:47.898521Z'
ingestedAt: '2026-09-16T14:57:28.030Z'
---

## Overview

ScadaLTS 2.8.1-release-candidate build 0 is affected by an 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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.