CVE-2026-10057: ITS Intelligent SCADA System XSS Flaw

CVE-2026-10057 Overview

CVE-2026-10057 is a Stored Cross-Site Scripting (XSS) vulnerability in the ITS Intelligent SCADA System developed by ITP Technology. The flaw allows authenticated attackers with elevated privileges to inject persistent JavaScript payloads into the application. The injected scripts execute in the browser context of any user who loads the affected page. The vulnerability is tracked under CWE-79 and was reported through Taiwan's TW-CERT Security Report.

Critical Impact
Persistent JavaScript injection in a SCADA management interface enables session hijacking, credential theft, and unauthorized actions against operational technology assets.

Affected Products

ITP Technology ITS Intelligent SCADA System (specific versions not disclosed in the advisory)

Discovery Timeline

2026-05-29 - CVE-2026-10057 published to NVD
2026-05-29 - Last updated in NVD database

Technical Details for CVE-2026-10057

Vulnerability Analysis

The ITS Intelligent SCADA System fails to sanitize or encode user-supplied input before storing it and rendering it back to other users. An authenticated attacker with high privileges can submit JavaScript payloads through input fields that the application persists in its data store. When another authenticated user navigates to a page that renders the stored content, the browser executes the injected script in the victim's session context. EPSS modeling currently places exploitation probability at the lower end of the spectrum, reflecting the high-privilege precondition.

Root Cause

The root cause is improper neutralization of input during web page generation, classified as CWE-79. The application accepts attacker-controlled data, stores it without output encoding, and reflects it into the rendered HTML response. Missing context-aware escaping in template rendering enables the browser to interpret stored content as executable script rather than inert data.

Attack Vector

Exploitation requires network access to the SCADA web interface, authenticated access with high privileges, and victim interaction such as loading the affected page. The attacker submits a payload through a vulnerable input. The server stores the payload. Each subsequent page load by another user triggers script execution, enabling session token theft, forced HMI actions, or pivoting into industrial control workflows. Refer to the TW-CERT Security Alert for vendor coordination details.

Detection Methods for CVE-2026-10057

Indicators of Compromise

Stored records in SCADA configuration or log tables containing <script>, javascript:, onerror=, or onload= substrings.
Outbound HTTP requests from operator workstations to unfamiliar domains immediately after loading SCADA dashboards.
Browser console errors or unexpected redirects observed by SCADA operators when accessing previously stable pages.

Detection Strategies

Review web server access logs for POST requests by privileged accounts containing HTML or JavaScript metacharacters in form fields.
Deploy a web application firewall (WAF) signature set targeting XSS payload patterns against the SCADA management URLs.
Run periodic database queries against user-editable fields to flag entries containing script tags, event handlers, or encoded equivalents such as <script.

Monitoring Recommendations

Alert on anomalous administrative sessions originating from unusual source addresses or outside maintenance windows.
Correlate SCADA audit logs with endpoint browser telemetry to identify script execution tied to specific operator workstations.
Monitor for sudden changes to stored display labels, alarm descriptions, or comment fields that could host an XSS payload.

How to Mitigate CVE-2026-10057

Immediate Actions Required

Restrict access to the SCADA web interface to a dedicated management network and required operator subnets only.
Audit and reduce the number of accounts holding the high-privilege role required to write to vulnerable fields.
Inspect existing stored content for embedded HTML or script payloads and purge any suspicious entries.

Patch Information

No public patch version is listed in the NVD record at publication. Contact ITP Technology and consult the TW-CERT Security Report for vendor-supplied fixes and update guidance.

Workarounds

Enforce a strict Content Security Policy (CSP) header on the SCADA application to block inline script execution.
Require multi-factor authentication for all administrative accounts to reduce the likelihood of high-privilege compromise.
Place the SCADA web console behind a reverse proxy that performs input filtering and output encoding for HTML special characters.

bash

# Example NGINX reverse proxy hardening for the SCADA console
server {
    listen 443 ssl;
    server_name scada.internal.example;

    add_header Content-Security-Policy "default-src 'self'; script-src 'self'; object-src 'none'; frame-ancestors 'none'" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header X-Frame-Options "DENY" always;
    add_header Referrer-Policy "no-referrer" always;

    location / {
        allow 10.20.0.0/24;   # operator subnet
        deny  all;
        proxy_pass https://its-scada-backend;
    }
}