Ghost 5.9.0 before 6.44.1 Authorization Bypass via Comment Like

{
  "id": "e2c6be8da12a40961cc3c0247bea71ba7f926e59910185928e4dcc71bdafff72",
  "url": "https://osv.dev/vulnerability/BIT-ghost-2026-103288",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Ghost 5.9.0 before 6.44.1 Authorization Bypass via Comment Like",
    "summary": "Ghost, an open-source publishing platform, contains an input validation flaw in its comment like feature in versions from 5.9.0 before 6.44.1. An authenticated member can delete comment likes or dislikes belonging to other users that they are not authorized to delete, resulting in an authorization bypass and unauthorized modification of comment engagement data.",
    "evidence": "osv:BIT-ghost-2026-103288",
    "products": [
      {
        "name": {
          "value": "ghost",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.44.1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "BIT-ghost-2026-103288",
      "aliases": [
        "BIT-ghost-2026-103288",
        "CVE-2026-103288",
        "GHSA-qrh6-cwg3-343x"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "SEMVER",
              "events": [
                {
                  "introduced": "5.9.0"
                },
                {
                  "fixed": "6.44.1"
                }
              ]
            }
          ],
          "package": {
            "name": "ghost",
            "purl": "pkg:bitnami/ghost",
            "ecosystem": "Bitnami"
          },
          "severity": [
            {
              "type": "CVSS_V4",
              "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
            }
          ],
          "database_specific": {
            "source": "https://github.com/bitnami/vulndb/tree/main/data/ghost/BIT-ghost-2026-103288.json"
          }
        }
      ],
      "modified": "2026-10-09T12:10:38.709516668Z",
      "provider": "osv",
      "references": [
        "https://github.com/TryGhost/Ghost/security/advisories/GHSA-qrh6-cwg3-343x",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-103288",
        "https://www.vulncheck.com/advisories/ghost-5.9.0-before-6.44.1-authorization-bypass-via-comment-like"
      ],
      "provider_metadata": {
        "cpes": [
          "cpe:2.3:a:ghost:ghost:*:*:*:*:*:node.js:*:*"
        ],
        "severity": "High"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-103288",
        "evidence": "/aliases"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/database_specific/severity"
  },
  "source_id": "core-osv",
  "document_id": 120738,
  "published_at": "2026-10-09T10:45:07.682+00:00"
}