flaskBlog allows arbitrary privilege escalation

{
  "id": "5f10a07cca78c8f97f87e7262260dbe8d520cf6f9fab63f657b827dcf13d8c09",
  "url": "https://osv.dev/vulnerability/CVE-2025-55736",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "flaskBlog allows arbitrary privilege escalation",
    "summary": "flaskBlog is a blog app built with Flask. In 2.8.0 and earlier, an arbitrary user can change his role to \"admin\", giving its relative privileges (e.g. delete users, posts, comments etc.). The problem is in the routes/adminPanelUsers file.",
    "evidence": "osv:CVE-2025-55736",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2025-55736",
      "aliases": [
        "CVE-2025-55736",
        "GHSA-6q83-vfmq-wf72"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/dogukanurker/flaskblog",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "7fea76d8c9ae624125ed86ed63e2c56dfad0d757"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "2.8.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "cpe": "cpe:2.3:a:dogukanurker:flaskblog:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "2.8.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.8.0",
            "2.7.0",
            "2.6.0",
            "2.5.0",
            "2.4.0",
            "2.3.0",
            "2.2.1",
            "2.2.0",
            "2.1.4",
            "2.1.3",
            "2.1.2",
            "2.1.1",
            "2.1.0",
            "2.0.12",
            "2.0.11",
            "2.0.10",
            "2.0.9",
            "2.0.8",
            "2.0.7",
            "2.0.6",
            "2.0.5",
            "2.0.4",
            "2.0.3",
            "2.0.2",
            "2.0.1",
            "2.0.0",
            "1.1.0",
            "1.0.9",
            "1.0.8",
            "1.0.7",
            "1.0.6",
            "1.0.5",
            "1.0.4",
            "1.0.3",
            "1.0.2",
            "1.0.1",
            "1.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-55736.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:41.298081191Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/55xxx/CVE-2025-55736.json",
        "https://github.com/DogukanUrker/FlaskBlog/security/advisories/GHSA-6q83-vfmq-wf72",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-55736"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-425",
          "CWE-807"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/55xxx/CVE-2025-55736.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-55736",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 508981,
  "published_at": "2025-08-19T19:04:00.564+00:00"
}