Security advisory

{
  "id": "dc918775534e22fb8c9180b13515c328cb7b25a0eacaf0c5a971be96c94a28f8",
  "url": "https://osv.dev/vulnerability/CVE-2021-34257",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-34257",
    "summary": "Multiple Remote Code Execution (RCE) vulnerabilities exist in WPanel 4 4.3.1 and below via a malicious PHP file upload to (1) Dashboard's Avatar image, (2) Posts Folder image, (3) Pages Folder image and (4) Gallery Folder image.",
    "evidence": "osv:CVE-2021-34257",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-34257",
      "aliases": [
        "CVE-2021-34257",
        "GHSA-vhgr-gfx3-fg37"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/wpanel/wpanel4-cms",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "01517e1e9a52bccbe75feeb780d39fead5034bf6"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:wpanel_cms_project:wpanel_cms:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "4.3.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "4.3.1",
            "4.3.0",
            "4.0.0",
            "v3.2.1",
            "3.2.0",
            "v3.1.2",
            "v3.1.1",
            "3.1.0",
            "3.0.2",
            "3.0.1",
            "3.0.0-beta",
            "3.0.0",
            "2.2.0",
            "2.0.1",
            "v2.0.0-beta",
            "2.0.0",
            "v1.3.0",
            "v1.2.4",
            "v1.2.3",
            "v1.2.2-beta",
            "1.2.1",
            "v1.2.0",
            "v1.0.3",
            "v1.0.2",
            "v1.0.1",
            "v0.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-34257.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:33.556935975Z",
      "provider": "osv",
      "references": [
        "https://github.com/Sentinal920/WPanel4-Authenticated-RCE",
        "https://latestpcsolution.wordpress.com/2021/06/05/wpanel4-cms-authenticated-rce/"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-34257",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 433305,
  "published_at": "2022-03-31T16:15:07.513+00:00"
}