CVE-2026-61843: CWE-862: Missing Authorization in error311 FileRise
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.
CVSS v3.1
Score 8.2high
Affected software
error311
FileRise
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-07-10T20:28:17.512Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6acfeacb2cdf04f656afb4d9
Added to database: 10/14/2026, 20:49:15 UTC
Last updated: 10/14/2026, 20:49:15 UTC
Views: 1
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