{"id":"CVE-2026-61843","summary":"FileRise: Unauthenticated File Overwrite Through Upload-Enabled Folder Shares","details":"FileRise is a self-hosted web-based file manager with multi-file upload, editing, and batch operations. Prior to 3.18.0, FileRise upload-enabled shared-folder and upload-only links do not reject a destination filename that already exists. An unauthenticated visitor with a valid share token and any configured share password can upload a file with the same name as an existing file and silently replace its content while the original uploader metadata remains. The same replacement gap affects ordinary authenticated uploads through /api/upload/upload.php and authenticated upload-only users who lack edit authority over the existing file. This issue is fixed in version 3.18.0.","aliases":["GHSA-r787-5hp3-4874"],"modified":"2026-10-16T02:47:51.874908177Z","published":"2026-10-14T20:22:57.741Z","database_specific":{"cwe_ids":["CWE-862"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/61xxx/CVE-2026-61843.json","cna_assigner":"GitHub_M"},"references":[{"type":"WEB","url":"https://github.com/error311/FileRise/releases/tag/v3.18.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/61xxx/CVE-2026-61843.json"},{"type":"ADVISORY","url":"https://github.com/error311/FileRise/security/advisories/GHSA-r787-5hp3-4874"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-61843"},{"type":"FIX","url":"https://github.com/error311/FileRise/commit/9ed1a38f00918849dbda30f54291d1451ed80d11"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/error311/filerise","events":[{"introduced":"0"},{"fixed":"9ed1a38f00918849dbda30f54291d1451ed80d11"},{"fixed":"9de64e9f8b4b7e379ed41ed2854b9d8e609e15ff"}],"database_specific":{"source":["AFFECTED_FIELD","REFERENCES"],"extracted_events":[{"introduced":"0"},{"fixed":"3.18.0"}]}}],"versions":["v3.17.0","v3.16.0","v3.15.0","v3.14.0","v3.13.0","v3.12.0","v3.11.2","v3.11.1","v3.11.0","v3.10.0","v3.9.4","v3.9.3","v3.9.2","v3.9.1","v3.9.0","v3.8.0","v3.7.0","v3.6.1","v3.6.0","v3.5.2","v3.5.1","v3.5.0","v3.4.1","v3.4.0","v3.3.3","v3.3.2","v3.3.1","v3.3.0","v3.2.4","v3.2.3","v3.2.2","v3.2.1","v3.1.7","v3.1.6","v3.1.4","v3.1.3","v3.1.2","v3.1.1","v3.1.0","v3.0.2","v3.0.1","v3.0.0","v2.13.1","v2.13.0","v2.12.1","v2.12.0","v2.11.4","v2.11.3","v2.11.2","v2.11.1","v2.11.0","v2.10.5","v2.10.4","v2.10.1","v2.9.3","v2.9.2","v2.8.0","v2.7.1","v2.7.0","v2.6.2","v2.6.1","v2.5.2","v2.5.1","v2.5.0","v2.4.0","v2.3.7","v2.3.6","v2.3.5","v2.3.4","v2.3.2","v2.3.1","v2.3.0","v2.2.4","v2.2.3","v2.2.2","v2.2.1","v2.1.0","v2.0.4","v2.0.3","v2.0.2","v2.0.1","v1.9.14","v1.9.13","v1.9.12","v1.9.11","v1.9.10","v1.9.9","v1.9.8","v1.9.7","v1.9.6","v1.9.5","v1.9.4","v1.9.3","v1.9.2","v1.9.1","v1.9.0","v1.8.13","v1.8.12","v1.8.11","v1.8.10","v1.8.9","v1.8.8","v1.8.7","v1.8.6","v1.8.5","v1.8.4","v1.8.3","v1.8.2","v1.8.1","v1.8.0","v1.7.5","v1.7.4","v1.7.3","v1.7.2","v1.6.11","v1.6.10","v1.6.9","v1.6.8","v1.6.7","v1.6.6","v1.6.5","v1.6.3","v1.6.2","v1.6.1","v1.6.0","v1.5.3","v1.5.2","v1.5.1","v1.5.0","1.4.0","v1.3.15","v1.3.13","v1.3.9","v1.3.8","v1.3.7","v1.3.6","v1.3.5","v1.3.4","v1.3.3","v1.3.2","v1.3.1","v1.3.0","v1.2.8","v1.2.7","v1.2.6","v1.2.5","v1.2.4","v1.2.3","v1.2.2","v1.2.1","v1.2.0","v1.1.3","v1.1.2","v1.1.1","v1.1.0","v1.0.9","v1.0.8","v1.0.7","v1.0.6","v1.0.5","v1.0.4","v1.0.3","v1.0.2","v1.0.1","v1.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-61843.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L"}]}