ScadaLTS 2.8.1 DWR Endpoint web.xml c0-scriptName/c0-methodName authorization

Summaryinfo

A vulnerability labeled as critical has been found in ScadaLTS 2.8.1. Impacted is an unknown function of the file web.xml of the component DWR Endpoint. Executing a manipulation of the argument c0-scriptName/c0-methodName can lead to authorization. This vulnerability is tracked as CVE-2026-84860. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability classified as critical was found in ScadaLTS 2.8.1. This vulnerability affects an unknown part of the file web.xml of the component DWR Endpoint. The manipulation of the argument c0-scriptName/c0-methodName with an unknown input leads to a authorization vulnerability. The CWE definition for the vulnerability is CWE-639. The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at tenable.com. This vulnerability was named CVE-2026-84860 since 09/02/2026. The exploitation appears to be easy. The attack can be initiated remotely. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 09/16/2026).

By approaching the search of inurl:web.xml it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• SCADA Software

Name

• ScadaLTS

Version

• 2.8.1

CPE 2.3info

• 🔒

CPE 2.2info

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