CVE-2026-84858
HighCVSS 8.8Summary
ScadaLTS 2.8.1-release-candidate build 0 has a remote code execution (RCE) vulnerability via scripting sandbox bypass. The validateScript method in DataSourceEditDwr compiles and executes attacker-supplied JavaScript without authorization, which can be exploited by a low-privileged user.
Risk Assessment
An attacker with low privileges can execute arbitrary code in the application context, potentially leading to full system compromise.
Recommendation
Upgrade ScadaLTS to a secure version or apply patches to restrict DWR access and validate scripts. Limit user privileges.
Other vulnerabilities in ScadaLTS
See all- CVE-2026-84860High
ScadaLTS 2.8.1-release-candidate build 0 suffers from an authorization bypass in DWR endpoints. Spring Security gates by URL pattern, but DWR dispatches based on POST body parameters, allowing any authenticated user to invoke any DWR method.
- CVE-2026-84859Medium
An authenticated blind SQL injection vulnerability in ScadaLTS 2.8.1-release-candidate build 0 in the /api/events/search endpoint. The sortBy array values are concatenated directly into the SQL ORDER BY clause without sanitization, allowing authenticated users with ROLE_USER to perform time-based and boolean-based blind SQL injection to extract arbitrary data, including password hashes of all users.
- CVE-2026-19656Critical
ScadaLTS 2.7.8.1 exposes a server-side method that lacks authorization checks, allowing any authenticated user (including one holding only low-privilege, read-only permissions) to execute arbitrary operating system commands on the host. Successful exploitation results in code execution in the context of the ScadaLTS server process (root), leading to full compromise of the underlying system.
- CVE-2026-19657Medium
ScadaLTS 2.7.8.1 reflects user-supplied input into an HTML response without sanitization. An unauthenticated attacker who lures a victim into visiting a crafted URL can execute arbitrary JavaScript in the context of the victim's browser session.
Original NVD description (English source)
ScadaLTS 2.8.1-release-candidate build 0 is affected by an Authenticated Remote Code Execution via Scripting Sandbox Bypass The DWR "DataSourceEditDwr" class exposes the "validateScript" method that compiles and executes attacker-supplied JavaScript via the Rhino scripting engine. There are no authorization checks on this method and so it is possible for an attacker with access to a low privilege user to abuse this flaw by leveraging the DWR routing bypass.