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Vulnerabilities

Vulnerability · CVE-2026-63353

Affected devices do not properly sanitize comment fields contained in imported trace files before rendering them on the Trace page.

Published Oct 13, 2026 · catalog updated Oct 14, 2026 · Affected devices do not

Check if you run it

No confirmed exploitation is on record for CVE-2026-63353. EPSS is 0.41%. Act only if a listed version of Affected devices do not is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Affected devices do not).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Critical9.4
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.41%
Remediation
Not established
Affected products
See sources for product scope

Affected devices do not properly sanitize comment fields contained in imported trace files before rendering them on the Trace page. This could allow an attacker to social engineer an authorized user who holds the function right “Read diagnostics” into importing a specially crafted trace file. Successful exploitation could allow attacker-controlled JavaScript to execute in the user’s browser session and perform PLC operations through the web server within the scope of the user’s authorization.

No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.

How to fix CVE-2026-63353

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-63353. EPSS is 0.41%. Act only if a listed version of Affected devices do not is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-79: Cross-site Scripting (XSS). EPSS 0.41%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 13, 2026 · NIST NVD

    Detected

    Affected devices do not properly sanitize comment fields contained in imported trace files before rendering them on the Trace page. This could allow an attacker to social engineer an authorized user who holds the function right “Read diagnostics” into importing a specially crafted trace file. Successful exploitation could allow attacker-controlled JavaScript to execute in the user’s browser sessio

  2. Oct 14, 2026 · NIST NVD

    Updated

    Affected devices do not properly sanitize comment fields contained in imported trace files before rendering them on the Trace page. This could allow an attacker to social engineer an authorized user who holds the function right “Read diagnostics” into importing a specially crafted trace file. Successful exploitation could allow attacker-controlled JavaScript to execute in the user’s browser sessio

Sources

  • CVE.orgVulnerability recordCVE-2026-63353

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-63353

    30-day exploitation probability 0.4%

    first.org
  • NIST NVDVulnerability recordCVE-2026-63353

    Affected devices do not properly sanitize comment fields contained in imported trace files before rendering them on the Trace page. This could allow an attacker to social engineer an authorized user who holds the function right “Read diagnostics” into importing a specially cra

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.