Security advisory

{
  "id": "eba252dda309f011d946cb3cbd741e10e5ca0c0db9aa4673bbcab2fd5a8f3327",
  "url": "https://osv.dev/vulnerability/CVE-2021-29439",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-29439",
    "summary": "The Grav admin plugin prior to version 1.10.11 does not correctly verify caller's privileges. As a consequence, users with the permission `admin.login` can install third-party plugins and their dependencies. By installing the right plugin, an attacker can obtain an arbitrary code execution primitive and elevate their privileges on the instance. The vulnerability has been addressed in version 1.10.11. As a mitigation blocking access to the `/admin` path from untrusted sources will reduce the probability of exploitation.",
    "evidence": "osv:CVE-2021-29439",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-29439",
      "aliases": [
        "CVE-2021-29439",
        "GHSA-wg37-cf5x-55hq"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/getgrav/grav-plugin-admin",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "a220359877fd1281f76ba732e5308e0e3002e4b1"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "fixed": "a220359877fd1281f76ba732e5308e0e3002e4b1"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.10.10",
            "1.10.9",
            "1.10.8",
            "1.10.7",
            "1.10.6",
            "1.10.5",
            "1.10.4",
            "1.10.3",
            "1.10.2",
            "1.10.1",
            "1.10.0",
            "1.9.19",
            "1.9.18",
            "1.9.17",
            "1.9.16",
            "1.9.15",
            "1.9.14",
            "1.9.13",
            "1.9.12",
            "1.9.10",
            "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",
            "1.9.0",
            "1.8.20",
            "1.8.19",
            "1.8.18",
            "1.8.17",
            "1.8.16",
            "1.8.15",
            "1.8.14",
            "1.8.13",
            "1.8.12",
            "1.8.11",
            "1.8.10",
            "1.8.9",
            "1.8.8",
            "1.8.7",
            "1.8.6",
            "1.8.5",
            "1.8.4",
            "1.8.3",
            "1.8.2",
            "1.8.1",
            "1.8.0",
            "1.7.4",
            "1.7.3",
            "1.7.2",
            "1.7.1",
            "1.7.0",
            "1.6.7",
            "1.6.6",
            "1.6.5",
            "1.6.4",
            "1.6.3",
            "1.6.2",
            "1.6.1",
            "1.6.0",
            "1.5.2",
            "1.5.1",
            "1.5.0",
            "1.4.2",
            "1.4.1",
            "1.4.0",
            "1.3.3",
            "1.3.2",
            "1.3.1",
            "1.3.0",
            "1.2.14",
            "1.2.13",
            "1.2.12",
            "1.2.5-rc.4",
            "1.2.5-rc.3",
            "1.2.5-rc.2",
            "1.2.5-rc.1",
            "1.2.0-rc.2",
            "1.2.0-rc.1",
            "1.1.0-rc.4",
            "1.1.0-rc.3",
            "1.1.0-rc.2",
            "1.1.0-rc.1",
            "1.1.0-beta.5",
            "1.1.0-beta.4",
            "1.1.0-beta.3",
            "1.1.0-beta.2",
            "1.1.0-beta.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-29439.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:37.103304092Z",
      "provider": "osv",
      "references": [
        "https://github.com/getgrav/grav-plugin-admin/security/advisories/GHSA-wg37-cf5x-55hq",
        "https://github.com/getgrav/grav-plugin-admin/commit/a220359877fd1281f76ba732e5308e0e3002e4b1"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:getgrav:grav_admin:*:*:*:*:*:*:*:*"
            ],
            "vendor_product": "getgrav:grav_admin",
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "1.10.11"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          },
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "1.10.11"
                  }
                ],
                "source": "DESCRIPTION"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2021-29439",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 385746,
  "published_at": "2021-04-13T20:15:22.297+00:00"
}