What is CVE-2026-9646?

CVE-2026-9646 is a medium-severity vulnerability in Scadabr, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 6.1/10. Published 2026-05-28.

How severe is CVE-2026-9646?

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

XSS in Scadabr

CVE-2026-9646

A reflected cross-site scripting issue exists in URL handling.

Published 2026-05-28 · last modified 2026-08-17.

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.

EPSS exploit prediction

EPSS: 0.003 (16.1th percentile), scored 2026-10-19.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 16.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001

Affected products

Scadabr — versions 1.2, 1.2.0

Weakness classification (CWE)

CWE-80 — Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)

References

www.tenable.com/security/research/tra-2026-46 (Third Party Advisory)

Frequently asked questions

What is CVE-2026-9646?: CVE-2026-9646 is a medium-severity vulnerability in Scadabr, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 6.1/10. Published 2026-05-28.
How severe is CVE-2026-9646?: Medium severity. CVSS v3 base score is 6.1 out of 10.