Nozomi Guardian/CMC up to 26.0.x cross site scripting

Summaryinfo

A vulnerability marked as problematic has been reported in Nozomi Guardian and CMC up to 26.0.x. Impacted is an unknown function. The manipulation leads to cross site scripting. This vulnerability is referenced as CVE-2025-40901. Remote exploitation of the attack is possible. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Nozomi Guardian and CMC up to 26.0.x. This issue affects an unknown code. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. The summary by CVE is:

A Stored HTML Injection vulnerability was discovered in the Credentials Manager functionality due to improper validation of an input parameter. An authenticated user with administrative privileges can define a malicious identity containing HTML tags. When a victim attempts to delete the affected identity, 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.

The weakness was published with Stefano Libero/Andrea Palanca. It is possible to read the advisory at security.nozominetworks.com. The identification of this vulnerability is CVE-2025-40901 since 04/16/2025. The exploitation is known to be easy. The attack may be initiated remotely. The exploitation requires an enhanced level of successful authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

Upgrading to version 26.1.0 eliminates this vulnerability.

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Productinfo

Vendor

• Nozomi

Name

• CMC
• Guardian

Version

• 26.0

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