{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8aa3c28c509341d912da74d8a7f34e10821254a3"
            }
          ],
          "repo": "https://github.com/arduino/arduino-ide",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-252h-4j5q-88pc"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/27xxx/CVE-2025-27608.json"
  },
  "details": "Arduino IDE 2.x is an IDE based on the Theia IDE framework and built with Electron. A Self Cross-Site Scripting (XSS) vulnerability has been identified within the Arduino-IDE prior to version v2.3.5. The vulnerability occurs in the Additional Board Manager URLs field, which can be found in the Preferences -\u003e Settings section of the Arduino IDE interface. In the vulnerable versions, any values entered in this field are directly displayed to the user through a notification tooltip object, without a proper output encoding routine, due to the underlying ElectronJS engine interpretation. This vulnerability exposes the input parameter to Self-XSS attacks, which may lead to security risks depending on where the malicious payload is injected. This vulnerability is fixed in 2.3.5.",
  "id": "CVE-2025-27608",
  "modified": "2026-04-01T23:08:02.374882646Z",
  "published": "2025-04-02T21:09:16.943Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/27xxx/CVE-2025-27608.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/arduino/arduino-ide/security/advisories/GHSA-252h-4j5q-88pc"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-27608"
    },
    {
      "type": "FIX",
      "url": "https://github.com/arduino/arduino-ide/commit/d298b3ffc94008e89066cd999d891e84190da18f"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Self Cross-Site Scripting in Arduino IDE"
}