1Panel – CAPTCHA Bypass via Client-Controlled Flag

{
  "id": "ea8ba12e260af8025001b6c910a5fe5b1da0014ea425e60b5fd3a4e9bc14d2a6",
  "url": "https://osv.dev/vulnerability/CVE-2025-66507",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "1Panel – CAPTCHA Bypass via Client-Controlled Flag",
    "summary": "1Panel is an open-source, web-based control panel for Linux server management. Versions 2.0.13 and below allow an unauthenticated attacker to disable CAPTCHA verification by abusing a client-controlled parameter. Because the server previously trusted this value without proper validation, CAPTCHA protections can be bypassed, enabling automated login attempts and significantly increasing the risk of account takeover (ATO). This issue is fixed in version 2.0.14.",
    "evidence": "osv:CVE-2025-66507",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2025-66507",
      "aliases": [
        "CVE-2025-66507",
        "GHSA-qmg5-v42x-qqhq",
        "GO-2025-4209"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/1panel-dev/1panel",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "b3350b54b3f885a03674b86642b9f1ff73cfb43f"
                },
                {
                  "fixed": "ac43f00273be745f8d04b90b6e2b9c1a40ef7bca"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:fit2cloud:1panel:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.0.14"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "ac43f00273be745f8d04b90b6e2b9c1a40ef7bca"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "b3350b54b3f885a03674b86642b9f1ff73cfb43f"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v2.0.14"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.0.13",
            "v2.0.12",
            "v2.0.11",
            "v2.0.10",
            "v2.0.8",
            "v2.0.7",
            "v2.0.6",
            "v2.0.5",
            "v2.0.4",
            "v2.0.3",
            "v2.0.2",
            "v2.0.1",
            "v2.0.0",
            "v1.10.12-beta",
            "v1.10.10-lts",
            "v1.10.7-lts",
            "v1.10.5-lts",
            "v1.10.4-lts",
            "v1.10.3-lts",
            "v1.10.2-lts",
            "v1.10.1-lts",
            "v1.10.0-lts",
            "v1.9.6",
            "v1.9.5",
            "v1.9.4",
            "v1.9.3",
            "v1.9.2",
            "v1.9.1",
            "v1.9.0",
            "v1.8.2",
            "v1.8.1",
            "v1.8.0",
            "v1.7.1",
            "v1.7.0",
            "v1.6.1",
            "v1.6.0",
            "v1.5.1",
            "v1.5.0",
            "v1.4.3",
            "v1.4.2",
            "v1.4.1",
            "v1.4.0",
            "v1.3.3",
            "v1.3.2",
            "v1.3.1",
            "v1.3.0",
            "v1.2.3",
            "v1.2.2",
            "v1.2.1",
            "v1.2.0",
            "v1.1.3",
            "v1.1.2",
            "v1.1.1",
            "v1.1.0",
            "v1.0.5",
            "v1.0.4",
            "v1.0.3",
            "v1.0.2",
            "v1.0.1",
            "v1.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-66507.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:37.648819219Z",
      "provider": "osv",
      "references": [
        "https://github.com/1Panel-dev/1Panel/releases/tag/v2.0.14",
        "https://github.com/1Panel-dev/1Panel/security/advisories/GHSA-qmg5-v42x-qqhq",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/66xxx/CVE-2025-66507.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-66507",
        "https://github.com/1Panel-dev/1Panel/commit/ac43f00273be745f8d04b90b6e2b9c1a40ef7bca"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-290",
          "CWE-602",
          "CWE-807"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/66xxx/CVE-2025-66507.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-66507",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 504649,
  "published_at": "2025-12-09T01:25:48.14+00:00"
}