What is CVE-2026-19657?

CVE-2026-19657 is a medium-severity vulnerability in Scada-lts Scadalts, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-08-12.

How severe is CVE-2026-19657?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Scada-lts Scadalts

CVE-2026-19657

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 se…

Vulnerability class: XSS (Cross-Site Scripting)

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Scada-lts Scadalts — versions 2.7.8.1

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

vulnreport@tenable.com

Frequently asked questions

What is CVE-2026-19657?: CVE-2026-19657 is a medium-severity vulnerability in Scada-lts Scadalts, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-08-12.
How severe is CVE-2026-19657?: Medium severity. CVSS v3 base score is 6.1 out of 10.