Multiple cross-site scripting (XSS) in OPNsense

{
  "id": "336a5c6bdaf2b3b5a0f7c24fbefcaec4cfa6cbf06bfdc1d59eb1e4453dc339cf",
  "url": "https://www.cve.org/CVERecord?id=CVE-2026-115425",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Multiple cross-site scripting (XSS) in OPNsense",
    "summary": "Multiple cross site scripting (XSS) vulnerabilities affect OPNsense firewall vesrion 26.7.1_1 and earlier allows low privileged attacker to execute Javascript in the context of another user visiting a specific page or clicking on a specifically crafted link.",
    "evidence": "cve:CVE-2026-115425",
    "products": [
      {
        "name": {
          "value": "OPNsense firewall",
          "evidence": "/containers/cna/affected/0/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-115425",
      "aliases": [
        "CVE-2026-115425"
      ],
      "metrics": [
        {
          "format": "CVSS",
          "cvssV4_0": {
            "Safety": "PRESENT",
            "version": "4.0",
            "Recovery": "IRRECOVERABLE",
            "baseScore": 5.6,
            "Automatable": "YES",
            "attackVector": "NETWORK",
            "baseSeverity": "MEDIUM",
            "valueDensity": "CONCENTRATED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H/E:P/S:P/AU:Y/R:I/V:C/RE:M/U:Amber",
            "exploitMaturity": "PROOF_OF_CONCEPT",
            "providerUrgency": "AMBER",
            "userInteraction": "PASSIVE",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "privilegesRequired": "LOW",
            "subIntegrityImpact": "HIGH",
            "vulnIntegrityImpact": "NONE",
            "subAvailabilityImpact": "HIGH",
            "vulnAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnerabilityResponseEffort": "MODERATE"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "affected": [
        {
          "vendor": "OPNsense",
          "product": "OPNsense firewall",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "versionType": "custom",
              "lessThanOrEqual": "26.7.1_1"
            },
            {
              "status": "unaffected",
              "version": "26.7.7"
            }
          ],
          "platforms": [
            "Linux"
          ],
          "defaultStatus": "unaffected"
        }
      ],
      "modified": "2026-10-26T14:24:20.876Z",
      "provider": "cve",
      "references": [
        "https://digitalcanion.com/security-research/#ghsa-9h93-hhcx-957c",
        "https://github.com/opnsense/core/security/advisories/GHSA-9h93-hhcx-957c"
      ],
      "provider_metadata": {
        "adp": [
          {
            "title": "CISA ADP Vulnrichment",
            "metrics": [
              {
                "other": {
                  "type": "ssvc",
                  "content": {
                    "id": "CVE-2026-115425",
                    "role": "CISA Coordinator",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "version": "2.0.3",
                    "timestamp": "2026-10-26T14:24:17.770527Z"
                  }
                }
              }
            ],
            "problemTypes": [
              {
                "descriptions": [
                  {
                    "lang": "en",
                    "type": "CWE",
                    "cweId": "CWE-79",
                    "description": "CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"
                  }
                ]
              }
            ],
            "providerMetadata": {
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP",
              "dateUpdated": "2026-10-26T14:24:20.876Z"
            }
          }
        ],
        "cna": {
          "orgId": "455daabc-a392-441d-aa46-37d35189897c",
          "shortName": "NCSC.ch",
          "dateUpdated": "2026-10-26T08:10:14.534Z"
        }
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-115425",
        "evidence": "/cveMetadata/cveId"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/containers/cna/metrics"
  },
  "source_id": "core-cve",
  "document_id": 311582,
  "published_at": "2026-10-26T08:10:14.534+00:00"
}