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Description

A Stored Cross-Site Scripting vulnerability was discovered in the Assets and Nodes functionality due to improper validation of an input parameter. An authenticated user with custom fields privileges can define a malicious custom field containing a JavaScript payload. When the victim views the Assets or Nodes pages, the XSS executes in their browser context, allowing the attacker to perform unauthorized actions as the victim, such as modify application data, disrupt application availability, and access limited sensitive information.

PUBLISHED Reserved 2025-04-16 | Published 2026-04-15 | Updated 2026-05-12 | Assigner Nozomi




HIGH: 7.1CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:H/VA:H/SC:L/SI:L/SA:L

HIGH: 8.9CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:H/A:H

Problem types

CWE-79 Improper neutralization of input during web page generation ('cross-site scripting')

Product status

Default status
unaffected

Any version before 26.0.0
affected

Default status
unaffected

Any version before 26.0.0
affected

Credits

This issue was found by Andrea Palanca of Nozomi Networks Product Security team during an internal investigation. finder

References

cert-portal.siemens.com/productcert/html/ssa-827968.html

security.nozominetworks.com/NN-2026:2-01

cve.org (CVE-2025-40899)

nvd.nist.gov (CVE-2025-40899)

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