NN-2026:3-01

Vulnerability from csaf_nozominetworks - Published: 2026-05-19 11:00 - Updated: 2026-05-19 11:00
Summary
Angular template injection in Reports in Guardian/CMC before 26.1.0
Severity
Medium
Notes
Risk Level for Nozomi customers: Medium
CVE-2025-40900
4.6 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:L
CWE-1336 - Improper Neutralization of Special Elements Used in a Template Engine
Affected products
Product Identifier Version Remediation
Nozomi Networks Guardian 26.1.0
Nozomi Networks / Guardian
 26.1.0
Nozomi Networks CMC 26.1.0
Nozomi Networks / CMC
 26.1.0
Product Identifier Version Remediation
Nozomi Networks Guardian <26.1.0
Nozomi Networks / Guardian
 vers:gem/<26.1.0
Mitigation
Vendor Fix
Nozomi Networks CMC <26.1.0
Nozomi Networks / CMC
 vers:gem/<26.1.0
Mitigation
Vendor Fix
Threats
Impact An authenticated user with report privileges can define a malicious report containing an Angular template payload, or a victim can be socially engineered to import a malicious report template. When the victim views or imports the report, the Angular template executes in their browser context, allowing the attacker to modify application data, or disrupt application availability. Full XSS exploitation and direct information disclosure are prevented by the existing input validation and Content Security Policy configuration.
References
Acknowledgments
Nozomi Networks Product Security team Stefano Libero Andrea Palanca
To clipboard 

{
  "document": {
    "aggregate_severity": {
      "text": "MEDIUM"
    },
    "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": "Angular template injection in Reports in Guardian/CMC before 26.1.0",
    "tracking": {
      "aliases": [
        "CVE-2025-40900"
      ],
      "current_release_date": "2026-05-19T11:00:00.000Z",
      "id": "NN-2026:3-01",
      "initial_release_date": "2026-05-19T11:00:00.000Z",
      "revision_history": [
        {
          "date": "2026-05-19T11:00:00.000Z",
          "number": "1",
          "summary": "Initial revision"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:gem/\u003c26.1.0",
                "product": {
                  "name": "Nozomi Networks Guardian \u003c26.1.0",
                  "product_id": "CSAFPID-0001"
                }
              },
              {
                "category": "product_version",
                "name": "26.1.0",
                "product": {
                  "name": "Nozomi Networks Guardian 26.1.0",
                  "product_id": "CSAFPID-0002"
                }
              }
            ],
            "category": "product_name",
            "name": "Guardian"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:gem/\u003c26.1.0",
                "product": {
                  "name": "Nozomi Networks CMC \u003c26.1.0",
                  "product_id": "CSAFPID-0003"
                }
              },
              {
                "category": "product_version",
                "name": "26.1.0",
                "product": {
                  "name": "Nozomi Networks CMC 26.1.0",
                  "product_id": "CSAFPID-0004"
                }
              }
            ],
            "category": "product_name",
            "name": "CMC"
          }
        ],
        "category": "vendor",
        "name": "Nozomi Networks"
      }
    ]
  },
  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "names": [
            "Stefano Libero",
            "Andrea Palanca"
          ],
          "organization": "Nozomi Networks Product Security team",
          "summary": "finding this issue during an internal investigation"
        }
      ],
      "cve": "CVE-2025-40900",
      "cwe": {
        "id": "CWE-1336",
        "name": "Improper Neutralization of Special Elements Used in a Template Engine"
      },
      "discovery_date": "2026-05-19T11:00:00.000Z",
      "ids": [
        {
          "system_name": "Nozomi Networks Security Advisory ID",
          "text": "NN-2026:3-01"
        }
      ],
      "notes": [
        {
          "category": "summary",
          "text": "An Angular template injection vulnerability was discovered in the Reports 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-2025-40900"
        },
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://security.nozominetworks.com/csaf/2026/nn-2026_3-01.json"
        },
        {
          "category": "self",
          "summary": "Human-readable advisory.",
          "url": "https://security.nozominetworks.com/NN-2026:3-01"
        }
      ],
      "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 v26.1.0 or later.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0003"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 4.6,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:L",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-0001",
            "CSAFPID-0003"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "An authenticated user with report privileges can define a malicious report containing an Angular template payload, or a victim can be socially engineered to import a malicious report template. When the victim views or imports the report, the Angular template executes in their browser context, allowing the attacker to modify application data, or disrupt application availability. Full XSS exploitation and direct information disclosure are prevented by the existing input validation and Content Security Policy configuration."
        }
      ],
      "title": "Angular template injection in Reports in Guardian/CMC before 26.1.0"
    }
  ]
}


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Sightings

Author Source Type Date Other

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.