by Kastro
Paper/Archive/CVE-2026-54414

CVE-2026-54414

error311 FileRise — FileRise shared-folder upload path traversal allows arbitrary file write and admin takeover

EPSS 0.7%CVSS 9.8
critical.is priorityof 100
40
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 51.8.518 × 2010.4No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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 %).

Affected

ProductAffectedFixed inSource
FileRise≤ 3.16.0–CNA

Scores by source

TuranSec (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
TuranSec (CNA)9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

patchgithub.com/error311/FileRise/releases/tag/v3.16.0writeupgithub.com/error311/FileRise/blob/v3.15.0/src/FileRise/Domain/UploadModel.php#L1023refgithub.com/error311/FileRise