{"id":"CVE-2023-49095","summary":"nexkey allows arbitrary users to impersonate any remote user due to missing signature validation","details":"nexkey is a microblogging platform. Insufficient validation of ActivityPub requests received in inbox could allow any user to impersonate another user in certain circumstances. This issue has been patched in version 12.122.2.","aliases":["GHSA-fpxw-rw9v-2gmx"],"modified":"2026-04-10T05:04:57.369708Z","published":"2023-11-30T07:10:10.994Z","database_specific":{"cwe_ids":["CWE-20"],"cna_assigner":"GitHub_M","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/49xxx/CVE-2023-49095.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/49xxx/CVE-2023-49095.json"},{"type":"ADVISORY","url":"https://github.com/nexryai/nexkey/security/advisories/GHSA-fpxw-rw9v-2gmx"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-49095"},{"type":"FIX","url":"https://github.com/nexryai/nexkey/commit/b96da0eac5a1e75abba94cf926f1251842829bab"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/nexryai/concorde","events":[{"introduced":"0"},{"fixed":"b96da0eac5a1e75abba94cf926f1251842829bab"}]},{"type":"GIT","repo":"https://github.com/nexryai/concorde","events":[{"introduced":"0"},{"fixed":"b96da0eac5a1e75abba94cf926f1251842829bab"}]}],"versions":["12.119.2-fix.1","12.119.2-fix.2","12.119.2-fix.3","12.119.2-fix.4","12.119.2-fix.5","12.119.2-fix.5.1","12.119.2-fix.5.2","12.119.2-fix.5.3","12.119.2-fix.5.4","12.119.2-fix.5.5"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-49095.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"12.122.2"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N"}]}