Security advisory

{
  "id": "7091f5f51ac9db9ef61456399fea662bde0b70376c960e806a5bb94bf4ec0b23",
  "url": "https://osv.dev/vulnerability/CVE-2021-31590",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-31590",
    "summary": "PwnDoc all versions until 0.4.0 (2021-08-23) has incorrect JSON Webtoken handling, leading to incorrect access control. With a valid JSON Webtoken that is used for authentication and authorization, a user can keep his admin privileges even if he is downgraded to the \"user\" privilege. Even after a user's account is deleted, the user can still access the administration panel (and add or delete users) and has complete access to the system.",
    "evidence": "osv:CVE-2021-31590",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-31590",
      "aliases": [
        "CVE-2021-31590"
      ],
      "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/pwndoc/pwndoc",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "59519735b0d831d8fd96d7c3387f66d28407e583"
                },
                {
                  "fixed": "15f3dc0e212eda465e05fda0feb002d1bce2939d"
                },
                {
                  "fixed": "ff1b868cec55f5b6c7a91e15a2b0b1f4324121ab"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:pwndoc_project:pwndoc:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "0.4.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "15f3dc0e212eda465e05fda0feb002d1bce2939d"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "ff1b868cec55f5b6c7a91e15a2b0b1f4324121ab"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.3.0",
            "v0.2.0",
            "v0.1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-31590.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:40.815016083Z",
      "provider": "osv",
      "references": [
        "https://github.com/pwndoc/pwndoc/security/advisories",
        "https://github.com/pwndoc/pwndoc/blob/59519735b0d831d8fd96d7c3387f66d28407e583/CHANGELOG.md#040-2021-08-23",
        "https://github.com/pwndoc/pwndoc/commit/15f3dc0e212eda465e05fda0feb002d1bce2939d",
        "https://github.com/pwndoc/pwndoc/commit/ff1b868cec55f5b6c7a91e15a2b0b1f4324121ab",
        "https://github.com/pwndoc/pwndoc/pull/128",
        "https://github.com/pwndoc/pwndoc/pull/74",
        "https://www.dgc.org/responsible_disclosure_pwndoc_jwt"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-31590",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 385874,
  "published_at": "2021-07-19T20:15:08.66+00:00"
}