---
title: "CVE-2026-63354: Affected Devices - Stored XSS"
description: "Affected devices contain a stored XSS vulnerability caused by improper validation and sanitization of visual marker data in imported CSV trace files, letting attackers execute JavaScript in authorized users' browsers, exploit requires user with 'Read diagnostics' rights to import crafted trace file."
url: https://panop.io/threat-heartbeat/CVE-2026-63354/
---

# CVE-2026-63354 Affected Devices - Stored XSS

Affected devices contain a stored XSS vulnerability caused by improper validation and sanitization of visual marker data in imported CSV trace files, letting attackers execute JavaScript in authorized users' browsers, exploit requires user with 'Read diagnostics' rights to import crafted trace file.

CVSS base score 9.6 /10

Critical

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.45% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-63354)

## Details

Type

Stored XSS

Impact

Client Script Exec

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Published

13 October 2026

Updated

15 October 2026

Weakness

[CWE-79](https://cwe.mitre.org/data/definitions/79.html)

## Vendor fix

Update to the latest version with proper input validation and sanitization.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-63354](https://nvd.nist.gov/vuln/detail/CVE-2026-63354)
- [https://cert-portal.siemens.com/productcert/html/ssa-591731.html](https://cert-portal.siemens.com/productcert/html/ssa-591731.html)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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