CRITICALCVSS v3.1 9.6Vulnerability
CVE-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 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.
Properties
- Severity
- CRITICAL
- Nvd fetched at
- 2026-10-20T08:53:12.313728+00:00
- Epss score
- 0.00413
- Cvss severity
- CRITICAL
- Cvss score
- 9.6
- Retrieved at
- 2026-10-21T01:24:50+00:00
- Last source
- FIRST EPSS
- Score
- 9.6
- Cvss version
- 3.1
- Cve id
- CVE-2026-63353
- Cvss vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
- First seen by Signal
- 2026-10-18T13:37:47+00:00
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
- Published at
- 2026-10-13T10:17:18.040
- Last modified
- 2026-10-15T20:38:04.303
- Epss percentile
- 0.34154
Related Entities (1)
HAS_WEAKNESS (1)
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