Security advisory

{
  "id": "92a3be57e4be615ee159f1938624adc5353170e92a08f16e21c48abd905e38d4",
  "url": "https://osv.dev/vulnerability/CVE-2025-65203",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2025-65203",
    "summary": "KeePassXC-Browser thru 1.9.9.2 autofills or prompts to fill stored credentials into documents rendered under a browser-enforced CSP directive and iframe attribute sandbox, allowing attacker-controlled script in the sandboxed document to access populated form fields and exfiltrate credentials.",
    "evidence": "osv:CVE-2025-65203",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2025-65203",
      "aliases": [
        "CVE-2025-65203"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/keepassxreboot/keepassxc-browser",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "23d7305f3a723b8d1655e7b3070482dae7016973"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:keepassxc:keepassxc-browser:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.9.9.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.9.9.2",
            "1.9.9.1",
            "1.6.0",
            "1.9.9",
            "1.9.8",
            "1.9.7",
            "1.9.6",
            "1.9.5",
            "1.9.4",
            "1.9.3",
            "1.9.2",
            "1.9.1.1",
            "1.9.1",
            "1.9.0.5",
            "1.9.0.4",
            "1.9.0.3",
            "1.9.0.2",
            "1.9.0.1",
            "1.9.0",
            "1.8.12",
            "1.8.11",
            "1.8.10",
            "1.8.9",
            "1.8.8.1",
            "1.8.8",
            "1.8.7",
            "1.8.6.1",
            "1.8.6",
            "1.8.5.1",
            "1.8.5",
            "1.8.4",
            "1.8.3.1",
            "1.8.2.2",
            "1.8.2.1",
            "1.8.2",
            "1.8.1",
            "1.8.0",
            "1.7.11",
            "1.7.10.1",
            "1.7.10",
            "1.7.9.1",
            "1.7.9",
            "1.7.8.1",
            "1.7.8",
            "1.7.7",
            "1.7.6",
            "1.7.5",
            "1.7.4",
            "1.7.3",
            "1.7.2",
            "1.7.1",
            "1.7.0",
            "1.7.0-beta1",
            "1.6.6",
            "1.6.5",
            "1.6.4",
            "1.6.3",
            "1.6.2",
            "1.6.1",
            "1.5.4",
            "1.5.3",
            "1.5.2",
            "1.5.1",
            "1.5.0",
            "1.4.7",
            "1.4.6",
            "1.4.5",
            "1.4.4",
            "1.4.3",
            "1.4.2",
            "1.4.1",
            "1.4.0",
            "1.3.3",
            "1.3.2",
            "1.3.1",
            "1.1.3",
            "1.1.2",
            "1.1.1",
            "1.1.0",
            "0.4.4",
            "0.4.3",
            "0.4.2",
            "0.4.1",
            "0.4.0",
            "0.3.9",
            "0.3.8",
            "0.3.7",
            "0.3.5",
            "0.3.2",
            "0.3.4",
            "0.3.3",
            "0.3.1",
            "0.3.0",
            "0.2.9",
            "0.2.8",
            "0.2.7",
            "0.2.6",
            "0.2.5",
            "0.2.4",
            "0.2.3",
            "0.2.2",
            "0.2.1",
            "0.2.0",
            "0.1.10",
            "0.1.8",
            "0.1.7",
            "0.1.6",
            "0.1.5",
            "0.1.4",
            "0.1.3",
            "0.1.2",
            "0.1.1",
            "0.1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-65203.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:22.643851944Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/65xxx/CVE-2025-65203.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-65203",
        "https://github.com/keepassxreboot/keepassxc-browser/issues/2647",
        "https://github.com/keepassxreboot/keepassxc-browser/pull/2648"
      ],
      "provider_metadata": {
        "cna_assigner": "mitre",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/65xxx/CVE-2025-65203.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-65203",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 488969,
  "published_at": "2025-12-17T00:00:00+00:00"
}