CVE-2025-40892 Stored Cross-Site Scripting (XSS) in Reports in Guardian/CMC before 25.5.0
Authenticated users can inject malicious scripts via report templates, allowing attackers to modify data and access sensitive information in the victim's browser.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-40892?
CVE-2025-40892 is a high-severity cross-site scripting vulnerability in Nozomi Networks CMC, published on 18 Dec 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
A Stored Cross-Site Scripting vulnerability was discovered in the Reports functionality due to improper validation of an input parameter. An authenticated user with report privileges can define a malicious report containing a JavaScript payload, or a victim can be socially engineered to import a malicious report template. When the victim views or imports the report, 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.
Weakness: CWE-79
Which versions are affected by CVE-2025-40892?
It affects 2 products.
Products include Nozominetworks Cmc, Nozominetworks Guardian.
How do I fix CVE-2025-40892?
No fix has been published for CVE-2025-40892 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2025-40892 being exploited?
There is no known exploitation of CVE-2025-40892 in the wild and no public exploit code.
Other vulnerabilities in Nozomi Networks CMC
- CVE-2023-29245 SQL Injection on IDS parsing of malformed asset fields in Guardian/CMC >= 22.6.0 before 22.6.3 and 23.1.0
- CVE-2026-31984 DoS through oversized audit log entries in Guardian/CMC before 26.2.0
- CVE-2023-2567 Authenticated SQL Injection on Query functionality in Guardian/CMC before 22.6.3 and 23.1.0
- CVE-2023-22378 Authenticated Blind SQL Injection on sorting in Guardian/CMC before 22.6.2
- CVE-2023-23574 Authenticated Blind SQL Injection on alerts count in Guardian/CMC before 22.6.2
Sources
Also known as GHSA-6726-7rcj-cq84.