HTML injection in Users in Guardian/CMC before 26.1.0_CVE-2025-40902

4.8 / 10

MEDIUM

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

Description

A Stored HTML Injection vulnerability was discovered in the Users functionality due to improper validation of an input parameter. An authenticated user with administrative privileges can create a malicious user whose username contains HTML tags. When a victim attempts to delete a group containing the affected user, the injected HTML renders in their browser, enabling phishing and possibly open redirect attacks. Full XSS exploitation and direct information disclosure are prevented by the existing input validation and Content Security Policy configuration.

Basic Information

ID CVE-2025-40902

Source Nozomi

Published May 19, 2026 at 13:21

Modified May 19, 2026 at 14:04

Affected Product

Vendor Nozomi Networks

Product Guardian

Affected Versions Nozomi Networks Guardian 0
Nozomi Networks CMC 0

CWE Classification

CWE-79

References

security.nozominetworks.com /NN-2026:5-01

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    "published": "2026-05-19T13:21:02.668Z",
    "modified": "2026-05-19T14:04:37.503Z",
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