CVE-2026-54414

CRITICAL 9.8

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

CVSS Score

9.8

EPSS Score

0.0%

EPSS Percentile

0th

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 %).

CWE	CWE-22 CWE-434
Vendor	error311
Product	filerise
Published	Jun 19, 2026
Last Updated	Aug 10, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

error311 / FileRise

0 ≤ 3.16.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/error311/FileRise/releases/tag/v3.16.0 github.com: https://github.com/error311/FileRise/blob/v3.15.0/src/FileRise/Domain/UploadModel.php#L1023 github.com: https://github.com/error311/FileRise

Credits

Shaxzod Turg'unov (j33d1)