CVE-2026-61843

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 3.1

8.2CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L

EPSS

0.4% chance of exploitation in the next 30 days; higher than 30% of CVEs (scores of 2026-10-25)

CWE

CWE-862

Published

2026-10-14

Modified

2026-10-15

Record from

the NVD, synced 2026-10-19

References

• https://github.com/error311/FileRise/commit/9ed1a38f00918849dbda30f54291d1451ed80d11
• https://github.com/error311/FileRise/releases/tag/v3.18.0
• https://github.com/error311/FileRise/security/advisories/GHSA-r787-5hp3-4874
• https://github.com/error311/FileRise/security/advisories/GHSA-r787-5hp3-4874

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