CVE-2025-40902
A Stored HTML Injection vulnerability was discovered in the Users functionality due to improper validation of an input parameter.
Published May 19, 2026 · updated Oct 14, 2026 · nozominetworks cmc
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.
Timeline
Detection, updates, and resolution for this record.
May 19, 2026 · NIST NVD
Detected
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 red
Oct 14, 2026 · NIST NVD
Updated
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 red
Affected
- cpe nozominetworks/cmcversion unspecified
- cpe nozominetworks/guardianversion unspecified
Sources
- CVE.orgCVE-2025-40902
Official CVE identifier
cve.org - NIST NVDCVE-2025-40902
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
nvd.nist.gov