{"id":"CVE-2026-66751","summary":"Let's Chat 0.3.0 - 0.4.8 Improper Authorization via DELETE /rooms/:room","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.","modified":"2026-07-30T04:03:32.323439494Z","published":"2026-07-28T15:36:15.896Z","database_specific":{"unresolved_ranges":[{"extracted_events":[{"introduced":"5b5f46f92696955c27864dbca8b33b5b6a39a502"},{"last_affected":"617207ff3c0c0bf8e3c7a915bd9ec03f1dd8390c"}],"source":"AFFECTED_FIELD"}],"cna_assigner":"VulnCheck","cwe_ids":["CWE-862"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/66xxx/CVE-2026-66751.json"},"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-"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/sdelements/lets-chat","events":[{"introduced":"4795dc006f2c820bb11f3e9b5256017830f274db"},{"last_affected":"a5e8b2d5977fedc167e1efb03a4f80121da4842e"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"0.3.0"},{"last_affected":"0.4.8"}]}}],"versions":["0.4.8","0.4.7","0.4.6","0.4.5","0.4.4","0.4.3","0.4.2","0.4.1","0.4.0","0.3.6","0.3.5","0.3.4","0.3.3","0.3.2","0.3.1","0.3.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-66751.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","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"}]}