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 %).

SeverityCritical

CVSS9.8

Exploit probability—

ProductFileRise

PublishedJun 19, 2026

First seenJun 19, 2026

Weakness typeCWE-22Path traversal CWE-434Unrestricted upload of dangerous file type

How to fix

Patches

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

Affected products

Product	Affected versions	Fixed in
error311 FileRise	v ≤ 3.16.0	—

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