CVE-2026-25786

CRITICAL WAF: High
CVSS 9.1 Published: 2026-05-12
CWE-79

Affected devices do not properly validate and sanitize PLC/station name rendered on the "communication" parameters page of the web interface. This could allow an authenticated attacker who is authorized to download a TIA project into the product, to inject malicious scripts into the page. If a benign user with appropriate rights accesses the "communication" parameters page, the malicious code would be executed in the scope of their web session.

WAF Coverage Analysis

Cross-Site Scripting (XSS) High WAF Coverage

OWASP: A03:2021 Injection

941xxx - XSS / XXE

References

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