{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "1.2.2"
              },
              {
                "fixed": "1.2.7"
              }
            ],
            "source": [
              "DESCRIPTION",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "5789176010e4456a28c7d84b9f19ff9d7b4a93ee"
            },
            {
              "fixed": "2570f650c2cc6f2ff925f7f498516c3053ebd9b0"
            },
            {
              "fixed": "86165533e311469a1b62093fd182d9d874de8106"
            }
          ],
          "repo": "https://github.com/phoenixframework/phoenix_live_view",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-5cgh-g58j-m9cq"
  ],
  "database_specific": {
    "cna_assigner": "EEF",
    "cwe_ids": [
      "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/58xxx/CVE-2026-58228.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "introduced": "4b63216ae68886db99cf7772af23372d76c40e7e"
          },
          {
            "fixed": "86165533e311469a1b62093fd182d9d874de8106"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "Cross-site scripting vulnerability in phoenixframework phoenix_live_view allows an attacker to bypass URL scheme validation and execute JavaScript in a victim's browser session.\n\nThe Phoenix.LiveView.Utils.valid_destination!/2 and Phoenix.LiveView.Utils.valid_live_navigation_destination!/2 functions in lib/phoenix_live_view/utils.ex rely on an internal uri_scheme/1 helper that only detects a scheme when the input's first byte is an ASCII letter. Inputs beginning with an ASCII control character or space fall through to a nil-returning clause, causing the URL to be treated as a safe relative path.\n\nStandard browsers implement the WHATWG URL parser, which strips leading C0 control and space characters before parsing. As a result, an input such as \" javascript:alert(1)\" is passed unchanged into \u003c.link href={...}\u003e and, when clicked, is parsed by the browser as a javascript: URL that executes attacker-controlled script in the victim's session.\n\nApplications that render user-supplied URLs (for example profile links, redirect targets, or external references) via \u003c.link href={...}\u003e are affected.\n\nThis issue affects phoenix_live_view: from 1.2.2 before 1.2.7.",
  "id": "CVE-2026-58228",
  "modified": "2026-07-16T03:30:51.290985406Z",
  "published": "2026-07-13T18:04:30.636Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://cna.erlef.org/cves/CVE-2026-58228.html"
    },
    {
      "type": "WEB",
      "url": "https://github.com"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/EEF-CVE-2026-58228"
    },
    {
      "type": "WEB",
      "url": "https://repo.hex.pm"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/58xxx/CVE-2026-58228.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/phoenixframework/phoenix_live_view/security/advisories/GHSA-5cgh-g58j-m9cq"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-58228"
    },
    {
      "type": "FIX",
      "url": "https://github.com/phoenixframework/phoenix_live_view/commit/86165533e311469a1b62093fd182d9d874de8106"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/phoenixframework/phoenix_live_view"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:L/VA:N/SC:H/SI:H/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Scheme validation bypass in Phoenix.LiveView.Utils leads to XSS via \u003c.link\u003e"
}