ScadaLTS Unauthenticated Reflected XSS

Answer in brief

CVE-2026-19657 records a Medium severity (CVSS 6.1) vulnerability in ScadaLTS Unauthenticated Reflected XSS. The current sources do not mark it as known exploited. The current feed maps SCADA-LTS/ScadaLTS (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 12, 2026Updated Aug 25, 2026Source checked Sep 27, 2026First seen by HOL Aug 12, 2026Material review Aug 25, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 6.1
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Not reported

Why this deserves its current priority

CVSS is 6.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps SCADA-LTS/ScadaLTS (generic). Check affected ranges and fixed versions before updating.

Affected products and reported versions
Product	Affected versions	Fixed versions
cpe:2.3:a:scada-lts:scada-lts:2.7.8.1:::::::*	Not reported	Not reported

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
SCADA-LTS/ScadaLTSgeneric	2.7.8.1	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for SCADA-LTS/ScadaLTS.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Aug 12, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 25, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 12, 2026

Sources and claim methodology

Source referencetenable.com

Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.