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fkie_cve-2026-63355

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 user’s browser session when the user subsequently interacts with an affected selection menu.

GHSA-gqqx-3f3w-hqvf

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 user’s browser session when the user subsequently interacts with an affected selection menu.

NCSC-2026-0415 — Kwetsbaarheden verholpen in Siemens-producten

NCSC-2026-0415

SSA-591731 — SSA-591731: Multiple Vulnerabilities in SIMATIC S7 PLCs Web Server

SIMATIC S7-1500 devices contain multiple vulnerabilities in the web server that could allow an attacker to execute malicious code in an authorized user’s browser session and perform PLC operations within the scope of that user’s authorization.

Siemens is preparing fixes and recommends specific mitigations for products where fixes are not or not yet available.