cvelistv5 - cve-2025-40890

CVE-2025-40890 (GCVE-0-2025-40890)

Vulnerability from cvelistv5 – Published: 2025-11-25 15:30 – Updated: 2025-11-26 15:01

Summary

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 sensitive information.

Severity ?

5.8 (Medium)


                        
                          CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:A/VC:L/VI:H/VA:H/SC:L/SI:L/SA:L

7.9 (High)


                        
                          CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:H/A:H

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')

Assigner

Nozomi

References

URL

Tags

https://security.nozominetworks.com/NN-2025:11-01

Impacted products

Vendor

Product

Version

Nozomi Networks

Guardian

Affected: 0 , < 25.4.0 (semver)

Nozomi Networks

CMC

Affected: 0 , < 25.4.0 (semver)

Credits

This issue was found by Humza Ahmad of ENCS during a VAPT testing session commissioned by one of our customers.

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2025-40890

Vulnerability from fkie_nvd - Published: 2025-11-25 16:16 - Updated: 2025-11-25 22:16

Severity ?

7.9 (High) - CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:H/A:H

Summary

References

	URL	Tags
	prodsec@nozominetworks.com	https://security.nozominetworks.com/NN-2025:11-01

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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  },
  "published": "2025-11-25T16:16:06.817",
  "references": [
    {
      "source": "prodsec@nozominetworks.com",
      "url": "https://security.nozominetworks.com/NN-2025:11-01"
    }
  ],
  "sourceIdentifier": "prodsec@nozominetworks.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "prodsec@nozominetworks.com",
      "type": "Primary"
    }
  ]
}

GHSA-JGQ4-7GR6-R8RV

Vulnerability from github – Published: 2025-11-25 18:32 – Updated: 2025-11-25 18:32

Details

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 sensitive information.

Severity ?

7.9 (High)


                  
                    CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:H/A:H

5.9 (Medium)


                  
                    CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:A/VC:L/VI:H/VA:H/SC:L/SI:L/SA:L

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2025-40890"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-11-25T16:16:06Z",
    "severity": "MODERATE"
  },
  "details": "A Stored Cross-Site Scripting vulnerability was discovered in the Dashboards functionality due to improper validation of an input parameter.\n\n\n\nAn 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 sensitive information.",
  "id": "GHSA-jgq4-7gr6-r8rv",
  "modified": "2025-11-25T18:32:22Z",
  "published": "2025-11-25T18:32:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-40890"
    },
    {
      "type": "WEB",
      "url": "https://security.nozominetworks.com/NN-2025:11-01"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:A/VC:L/VI:H/VA:H/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

NN-2025:11-01

Vulnerability from csaf_nozominetworks - Published: 2025-11-25 11:00 - Updated: 2025-11-26 11:00

nn-2025:11-01

Summary

Stored Cross-Site Scripting (XSS) in Dashboards in Guardian/CMC before 25.4.0

Notes

Risk Level for Nozomi customers

Medium

JSON

To clipboard

{
  "document": {
    "aggregate_severity": {
      "text": "HIGH"
    },
    "category": "csaf_vex",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE"
      }
    },
    "lang": "en-US",
    "notes": [
      {
        "category": "other",
        "text": "Medium",
        "title": "Risk Level for Nozomi customers"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "Nozomi Networks Product Security team can be reached at prodsec@nozominetworks.com",
      "name": "Nozomi Networks Product Security",
      "namespace": "https://security.nozominetworks.com/psirt"
    },
    "title": "Stored Cross-Site Scripting (XSS) in Dashboards in Guardian/CMC before 25.4.0",
    "tracking": {
      "aliases": [
        "CVE-2025-40890"
      ],
      "current_release_date": "2025-11-26T11:00:00.000Z",
      "id": "NN-2025:11-01",
      "initial_release_date": "2025-11-25T11:00:00.000Z",
      "revision_history": [
        {
          "date": "2025-11-25T11:00:00.000Z",
          "number": "1",
          "summary": "Initial revision"
        },
        {
          "date": "2025-11-26T11:00:00.000Z",
          "number": "2",
          "summary": "Updated credits"
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:gem/\u003c25.4.0",
                "product": {
                  "name": "Nozomi Networks Guardian \u003c25.4.0",
                  "product_id": "CSAFPID-0001"
                }
              },
              {
                "category": "product_version",
                "name": "25.4.0",
                "product": {
                  "name": "Nozomi Networks Guardian 25.4.0",
                  "product_id": "CSAFPID-0002"
                }
              }
            ],
            "category": "product_name",
            "name": "Guardian"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:gem/\u003c25.4.0",
                "product": {
                  "name": "Nozomi Networks CMC \u003c25.4.0",
                  "product_id": "CSAFPID-0003"
                }
              },
              {
                "category": "product_version",
                "name": "25.4.0",
                "product": {
                  "name": "Nozomi Networks CMC 25.4.0",
                  "product_id": "CSAFPID-0004"
                }
              }
            ],
            "category": "product_name",
            "name": "CMC"
          }
        ],
        "category": "vendor",
        "name": "Nozomi Networks"
      }
    ]
  },
  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "names": [
            "Humza Ahmad"
          ],
          "organization": "ENCS",
          "summary": "finding this issue during a VAPT testing session commissioned by one of our customers"
        }
      ],
      "cve": "CVE-2025-40890",
      "cwe": {
        "id": "CWE-79",
        "name": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)"
      },
      "discovery_date": "2025-11-25T11:00:00.000Z",
      "ids": [
        {
          "system_name": "Nozomi Networks Security Advisory ID",
          "text": "NN-2025:11-01"
        }
      ],
      "notes": [
        {
          "category": "summary",
          "text": "A Stored Cross-Site Scripting vulnerability was discovered in the Dashboards functionality due to improper validation of an input parameter.",
          "title": "Vulnerability summary"
        }
      ],
      "product_status": {
        "fixed": [
          "CSAFPID-0002",
          "CSAFPID-0004"
        ],
        "known_affected": [
          "CSAFPID-0001",
          "CSAFPID-0003"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "Mitre CVE entry",
          "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-40890"
        },
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://security.nozominetworks.com/csaf/2025/nn-2025_11-01.json"
        },
        {
          "category": "self",
          "summary": "Human-readable advisory.",
          "url": "https://security.nozominetworks.com/NN-2025:11-01"
        }
      ],
      "remediations": [
        {
          "category": "mitigation",
          "details": "Use internal firewall features to limit access to the web management interface. Review all accounts with access to it and delete unnecessary ones.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0003"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Upgrade to v25.4.0 or later.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0003"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.9,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-0001",
            "CSAFPID-0003"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "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 sensitive information."
        }
      ],
      "title": "Stored Cross-Site Scripting (XSS) in Dashboards in Guardian/CMC before 25.4.0"
    }
  ]
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

CVE-2025-40890 (GCVE-0-2025-40890)

FKIE_CVE-2025-40890

GHSA-JGQ4-7GR6-R8RV

NN-2025:11-01

nn-2025:11-01

Tags

Sightings

Nomenclature