{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "misp",
          "vendor": "misp",
          "versions": [
            {
              "lessThanOrEqual": "2.5.32",
              "status": "affected"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Sami Mokaddem"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Maxime ESCOURBIAC from Michelin CERT"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eA vulnerability in the dashboard button widget component allows improper handling of user-supplied URLs, which could lead to unintended redirection to external websites.\u003c/p\u003e\n\u003cp\u003ePrior to the fix, the application directly embedded a user-controlled \u003ccode\u003eurl\u003c/code\u003e parameter into an HTML anchor element without validating whether the target was a local path. An attacker able to influence widget configuration could supply a crafted URL containing an external scheme or host, causing users to be redirected to attacker-controlled websites when clicking the dashboard button.\u003c/p\u003e\n\u003cp\u003eThe issue results from insufficient validation of URL components before rendering the link. The patch introduces strict parsing and validation using \u003ccode\u003eparse_url()\u003c/code\u003e to ensure that only relative paths beginning with \u003ccode\u003e/\u003c/code\u003e are accepted and rejects URLs containing a scheme, host, or user component.\u003c/p\u003e\n\u003cp\u003eIf an invalid URL is detected, the application now renders a non-clickable button instead of a link.\u003c/p\u003e\u003cbr\u003e"
            }
          ],
          "value": "A vulnerability in the dashboard button widget component allows improper handling of user-supplied URLs, which could lead to unintended redirection to external websites.\n\n\nPrior to the fix, the application directly embedded a user-controlled url parameter into an HTML anchor element without validating whether the target was a local path. An attacker able to influence widget configuration could supply a crafted URL containing an external scheme or host, causing users to be redirected to attacker-controlled websites when clicking the dashboard button.\n\n\nThe issue results from insufficient validation of URL components before rendering the link. The patch introduces strict parsing and validation using parse_url() to ensure that only relative paths beginning with / are accepted and rejects URLs containing a scheme, host, or user component.\n\n\nIf an invalid URL is detected, the application now renders a non-clickable button instead of a link."
        }
      ],
      "impacts": [
        {
          "descriptions": [
            {
              "lang": "en"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 6.4,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "HIGH",
            "subConfidentialityImpact": "HIGH",
            "subIntegrityImpact": "HIGH",
            "userInteraction": "ACTIVE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "orgId": "00000000-0000-4000-9000-000000000000"
      },
      "references": [
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/MISP/MISP/commit/f02dafd5086990c6396524ed37ee76d07f23b854"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Improper URL validation in MISP dashboard button widget allows external redirection",
      "x_generator": {
        "engine": "Vulnogram 0.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "00000000-0000-4000-9000-000000000000",
    "datePublished": "2026-02-27T14:55:00.000Z",
    "dateUpdated": "2026-02-27T15:44:29.998063Z",
    "requesterUserId": "00000000-0000-4000-9000-000000000000",
    "serial": 1,
    "state": "PUBLISHED",
    "vulnId": "gcve-1-2026-0019",
    "vulnerabilitylookup_history": [
      [
        "alexandre.dulaunoy@circl.lu",
        "2026-02-27T14:55:29.840231Z"
      ],
      [
        "alexandre.dulaunoy@circl.lu",
        "2026-02-27T15:44:29.998063Z"
      ]
    ]
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}