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CVE-2026-84860— Scada-LTS DWR Authorization Bypass - Systemic

Quick assessment

Affected
Scada-LTS Scada-LTS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

ScadaLTS 2.8.1 发布候选版（build 0）存在一个授权绕过漏洞。 Spring Security 通过 URL 路径模式来控制 DWR 端点的访问权限，但 DWR 本身是根据 POST 请求体中的 和 参数来分发方法调用的。此外， 中的 设置被设为 ，从而禁用了 DWR 内置的来源（Origin）验证。 这意味着，任何已认证用户都可以通过向一个其有权访问的 URL（例如 ）发送请求，并在 POST 请求体中指定受限的类名，从而调用任意 DWR 方法——即使该受限类在基于 URL 的访问控制下本应被限

CVSS 8.8 · High EPSS 0.48% · P39

Affected Version Matrix 1

VendorProduct Version RangeStatus
Scada-LTS Scada-LTS 2.8.1 affected
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I. Basic Information for CVE-2026-84860

Vulnerability Information
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Vulnerability Title
Scada-LTS DWR Authorization Bypass - Systemic
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Scada-LTS Scada-LTS 2.8.1 -

II. Public POCs for CVE-2026-84860

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III. Intelligence Information for CVE-2026-84860

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Other References for CVE-2026-84860 (1)

Same Patch Batch · Scada-LTS · 2026-09-16 · 3 CVEs total

CVE-2026-84858 8.8 HIGH Scada-LTS Authenticated Remote Code Execution via Scripting Sandbox Bypass
CVE-2026-84859 6.5 MEDIUM Scada-LTS Authenticated Blind SQL Injection

IV. Related Vulnerabilities

Same product: Scada-LTS
Same vendor: Scada-LTS

V. Comments for CVE-2026-84860

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