{"id":"CVE-2023-45660","summary":"Require strict cookies for image proxy requests in Nextcloud Mail","details":"Nextcloud mail is an email app for the Nextcloud home server platform. In affected versions a missing check of origin, target and cookies allows for an attacker to abuse the proxy endpoint to denial of service a third server. It is recommended that the Nextcloud Mail is upgraded to 2.2.8 or 3.3.0. There are no known workarounds for this vulnerability.","aliases":["GHSA-8j9x-fmww-qr37"],"modified":"2026-08-12T03:51:11.648550920Z","published":"2023-10-16T18:32:00.486Z","database_specific":{"cwe_ids":["CWE-918"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/45xxx/CVE-2023-45660.json","cna_assigner":"GitHub_M"},"references":[{"type":"WEB","url":"https://hackerone.com/reports/1895874"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/45xxx/CVE-2023-45660.json"},{"type":"ADVISORY","url":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8j9x-fmww-qr37"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-45660"},{"type":"FIX","url":"https://github.com/nextcloud/mail/pull/8459"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/nextcloud/mail","events":[{"introduced":"e57d2891a69ec6851cc4e3782c0a9f7e0eb52c80"},{"fixed":"806f64a349f75b1ecd7871ea7aea4a11ed815774"},{"introduced":"b01f5a6d057a346683005627f0a0dd1f80bbc811"},{"fixed":"5d492d2eb8cbd42c5324ba04aea7a05d414e69dd"}],"database_specific":{"extracted_events":[{"introduced":"2.2.0"},{"fixed":"2.2.8"},{"introduced":"3.0.0"},{"fixed":"3.3.0"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:nextcloud:mail:*:*:*:*:*:*:*:*"}}],"versions":["v2.2.7","v2.2.6","v2.2.5","v2.2.4","v2.2.3","v2.2.2","v2.2.1","v2.2.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-45660.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L"}]}