{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0.3.0"
              },
              {
                "last_affected": "0.4.8"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "4795dc006f2c820bb11f3e9b5256017830f274db"
            },
            {
              "last_affected": "a5e8b2d5977fedc167e1efb03a4f80121da4842e"
            }
          ],
          "repo": "https://github.com/sdelements/lets-chat",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-862"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/66xxx/CVE-2026-66751.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "introduced": "5b5f46f92696955c27864dbca8b33b5b6a39a502"
          },
          {
            "last_affected": "617207ff3c0c0bf8e3c7a915bd9ec03f1dd8390c"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "Let's Chat 0.3.0 through 0.4.8 contains an improper authorization vulnerability that allows any authenticated user to archive any room on the server by sending a DELETE request to the rooms handler without ownership verification. Attackers can enumerate room IDs via the rooms listing endpoint and permanently archive private or password-protected rooms they cannot access, with no application-level recovery path requiring direct database intervention to restore.",
  "id": "CVE-2026-66751",
  "modified": "2026-07-30T03:52:23.584476440Z",
  "published": "2026-07-28T15:36:15.896Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/66xxx/CVE-2026-66751.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-66751"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/let-s-chat-improper-authorization-via-delete-rooms-room"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/sdelements/lets-chat"
    },
    {
      "type": "EVIDENCE",
      "url": "https://github.com/theopaid/Insufficient-Access-Controls-Allow-for-Unauthorized-Room-Deletion-Let-s-Chat-"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Let's Chat 0.3.0 - 0.4.8 Improper Authorization via DELETE /rooms/:room"
}