CVE-2026-54414

critical

Description

FileRise before 3.16.0 is vulnerable to path traversal in the shared-folder upload endpoint (/api/folder/uploadToSharedFolder.php), leading to arbitrary file write and administrator account takeover. The upload filename is validated by FolderController with basename and REGEX_FILE_NAME, which permit URL-encoded sequences (the regex blocks / and \ but not %).

References

https://github.com/error311/FileRise/releases/tag/v3.16.0

https://github.com/error311/FileRise/blob/v3.15.0/src/FileRise/Domain/UploadModel.php#L1023

https://github.com/error311/FileRise

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-37993

Details

Source: Mitre, NVD

Published: 2026-06-19

Updated: 2026-08-10

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

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

Severity: Critical

CVSS v4

Base Score: 9.3

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Severity: Critical

EPSS

EPSS: 0.00664