Siemens TIA Portal XSS via Unsanitized CSV Trace Signal Names
CVE-2026-63355 Published on October 13, 2026
Affected devices do not properly sanitize signal names contained in imported CSV trace files before rendering them in selection menus 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. Attacker-controlled JavaScript could be executed in the users browser session when the user subsequently interacts with an affected selection menu.
Weakness Type
What is a XSS Vulnerability?
The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
CVE-2026-63355 has been classified to as a XSS vulnerability or weakness.
Products Associated with CVE-2026-63355
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Affected Versions
Siemens SIMATIC Drive Controller CPU 1504D TF:- Before * is affected.
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