CVE-2026-33071

FileRise: WebDAV upload path bypasses filename validation enforced by regular uploads

State: Published
Severity: 4.3 Medium
Published: Mar 20, 2026
Updated: Mar 20, 2026
Reserved: Mar 17, 2026

Description

FileRise is a self-hosted web file manager / WebDAV server. In versions prior to 3.8.0, the WebDAV upload endpoint accepts any file extension including .phtml, .php5, .htaccess, and other server-side executable types, bypassing the filename validation enforced by the regular upload path. In non-default deployments lacking Apache's LocationMatch protection, this leads to remote code execution. When files are uploaded via WebDAV, the createFile() method in FileRiseDirectory.php and the put() method in FileRiseFile.php accept the filename directly from the WebDAV client without any validation. In contrast, the regular upload endpoint in UploadModel::upload() validates filenames against REGEX_FILE_NAME. This issue is fixed in version 3.8.0.

Scores

CVSS	Score	Vector	Source
3.1	4.3 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N	GitHub_M

Weaknesses

CWE-434 Unrestricted Upload of File with Dangerous Type
CWE-552 Files or Directories Accessible to External Parties

Affected Products

Product	Versions
FileRiseerror311	< 3.8.0Affected

References

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