CVE-2026-25786CWE-79

Affected devices do not properly validate and sanitize PLC/station name rendered on the "communication" parameters page of the web interface

Critical · published May 12, 2026

CVSS v4.0
9.3
EPSS
1%
Percentile
44.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
9.3 · CRITICAL
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
EPSS
0.00540 · 44.6th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-05-12T08:20Z
EPSS history
Timeline
  • 12 MAY 08:20Z
    Affected devices do not properly validate and sanitize PLC/station name rendered on the "communication" parameters page of the web interface
    cvelistv5