Security incident · CVE-2025-40890
A Stored Cross-Site Scripting vulnerability was discovered in the Dashboards functionality due to improper validation of an input parameter.
Published Nov 25, 2025 · catalog updated Nov 26, 2025 · Nozomi Networks CMC
Last checked Oct 28, 2026. A connected source was read within the last 7 days.
Check if you run it
No confirmed exploitation is on record for CVE-2025-40890. EPSS is 0.21%. Act only if a listed version of Nozomi Networks CMC is installed.
Gaps on this record
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
Same product and reporting
- CVE-2025-40898 · High
- CVE-2025-40893 · Medium
- CVE-2025-40891 · Low
- CVE-2025-40886 · High
- CVE-2025-40885 · Medium
- Severity
- Medium5.8
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.21%
- Remediation
- Version ranges on file
- Affected products
- vendor Nozomi Networks CMC 0 <25.4.0
A Stored Cross-Site Scripting vulnerability was discovered in the Dashboards functionality due to improper validation of an input parameter. An authenticated low-privilege user can craft a malicious dashboard containing a JavaScript payload and share it with victim users, or a victim can be socially engineered to import a malicious dashboard template. When the victim views or imports the dashboard, 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
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- vendor Nozomi Networks CMC 0 <25.4.00 <25.4.0
How to fix CVE-2025-40890
Upgrade
CVE-2025-40890 lists a fix boundary at 25.4.0. Compare the installed build with that boundary before you change production.
Version check
Seen in 0 <25.4.0
Advisory
Open the cve_org record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2025-40890. EPSS is 0.21%. Act only if a listed version of Nozomi Networks CMC is installed.
Which versions are affected?
Compare what you have installed with Nozomi Networks CMC 0 <25.4.0 0 <25.4.0. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
No weakness class is stored. EPSS 0.21%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Nov 25, 2025 · EUVD
Detected
A Stored Cross-Site Scripting vulnerability was discovered in the Dashboards functionality due to improper validation of an input parameter. An authenticated low-privilege user can craft a malicious dashboard containing a JavaScript payload and share it with victim users, or a victim can be socially engineered to import a malicious dashboard template. When the victim views or imports the dashboard
Nov 26, 2025 · EUVD
Updated
A Stored Cross-Site Scripting vulnerability was discovered in the Dashboards functionality due to improper validation of an input parameter. An authenticated low-privilege user can craft a malicious dashboard containing a JavaScript payload and share it with victim users, or a victim can be socially engineered to import a malicious dashboard template. When the victim views or imports the dashboard
Sources
- CVE.orgVulnerability recordCVE-2025-40890
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2025-40890
30-day exploitation probability 0.21%
first.org - EUVDVulnerability recordEUVD-2025-199602
A Stored Cross-Site Scripting vulnerability was discovered in the Dashboards functionality due to improper validation of an input parameter. An authenticated low-privilege user can craft a malicious dashboard containing a JavaScript payload and share it with victim users, or a vi
euvd.enisa.europa.eu
References
Freshness
Last verified in this catalog Oct 28, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- FIRST EPSSOct 28, 2026
- CVE.orgOct 28, 2026
- EUVDOct 28, 2026