CVE-2025-40894: HTML injection in Alerted Nodes Dashboard in Guardian/CMC before 25.6.0
A Stored HTML Injection vulnerability was discovered in the Alerted Nodes Dashboard functionality due to improper validation on an input parameter.
A malicious authenticated user with the required privileges could edit a node label to inject HTML tags. If the system is configured to use the Alerted Nodes Dashboard, and alerts are reported for the affected node, then the injected HTML may render in the browser of a victim user interacting with it, 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.
Affected Software
Remediation
Information
Event History
Frequently Asked Questions
What is the severity of CVE-2025-40894?
The severity of CVE-2025-40894 is currently classified as high due to the potential for stored HTML injection.
How do I fix CVE-2025-40894?
To fix CVE-2025-40894, upgrade Guardian CMC to version 25.6.0 or later, which addresses the validation issue.
Who is affected by CVE-2025-40894?
CVE-2025-40894 affects users of Guardian CMC versions prior to 25.6.0.
What impact does CVE-2025-40894 have?
CVE-2025-40894 allows a malicious authenticated user to perform HTML injection in the Alerted Nodes Dashboard.
Can unprivileged users exploit CVE-2025-40894?
No, unprivileged users cannot exploit CVE-2025-40894 as it requires specific privileges to edit a node.