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