{"id":"CVE-2026-61843","state":"PUBLISHED","title":"FileRise: Unauthenticated File Overwrite Through Upload-Enabled Folder Shares","description":"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.","publishedAt":"2026-10-14T20:22:57.741Z","updatedAt":"2026-10-15T15:05:44.030Z","severity":{"score":8.2,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L","source":"GitHub_M"},"assigner":"GitHub_M","products":["error311 FileRise"],"affected":[{"vendor":"error311","product":"FileRise","versions":[{"version":"< 3.18.0","status":"affected"}]}],"references":["https://github.com/error311/FileRise/security/advisories/GHSA-r787-5hp3-4874","https://github.com/error311/FileRise/commit/9ed1a38f00918849dbda30f54291d1451ed80d11","https://github.com/error311/FileRise/releases/tag/v3.18.0"],"weaknesses":["CWE-862"],"ingestedAt":"2026-10-29T20:12:32.778Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/61xxx/CVE-2026-61843.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-61843","state":"PUBLISHED","datePublished":"2026-10-14T20:22:57.741Z","dateUpdated":"2026-10-15T15:05:44.030Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-07-10T20:28:17.512Z"},"containers":{"cna":{"title":"FileRise: Unauthenticated File Overwrite Through Upload-Enabled Folder Shares","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"error311","product":"FileRise","versions":[{"version":"< 3.18.0","status":"affected"}]}],"references":[{"url":"https://github.com/error311/FileRise/security/advisories/GHSA-r787-5hp3-4874","name":"https://github.com/error311/FileRise/security/advisories/GHSA-r787-5hp3-4874","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/error311/FileRise/commit/9ed1a38f00918849dbda30f54291d1451ed80d11","name":"https://github.com/error311/FileRise/commit/9ed1a38f00918849dbda30f54291d1451ed80d11","tags":["x_refsource_MISC"]},{"url":"https://github.com/error311/FileRise/releases/tag/v3.18.0","name":"https://github.com/error311/FileRise/releases/tag/v3.18.0","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":8.2,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-862","lang":"en","description":"CWE-862: Missing Authorization","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-10-14T20:22:57.741Z"},"source":{"advisory":"GHSA-r787-5hp3-4874","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/error311/FileRise/security/advisories/GHSA-r787-5hp3-4874","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-15T15:05:37.325468Z","id":"CVE-2026-61843","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-15T15:05:44.030Z"}}]}}}