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Vulnerability record · CVE-2026-33071 · published 20 March 2026

CVE-2026-33071: Filerise unrestricted file upload vulnerability

Filerise · Filerise

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.

8.8 CVSS 3.1 High EPSS 0.72% · top 48.1% CWE-434 · Unrestricted file uploadCWE-552 · CWE-552
8.8CVSS 3.1 base score
0.72%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 1 tagged exploit
17 Jun 2026Last modified by NVD

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/error311/FileRise/releases/tag/v3.8.0 ProductRelease Notes
https://github.com/error311/FileRise/security/advisories/GHSA-46gv-gf5f-wvr2 ExploitMitigationVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.1CVE-2026-33329Filerise path traversal vulnerabilityFileRise is a self-hosted web file manager / WebDAV server. From version 1.0.1 to before version 3.10.0, the resumableIdentifier parameter in the Res…EPSS 0.61%8.1CVE-2025-62509Filerise improper access control vulnerabilityFileRise is a self-hosted web-based file manager with multi-file upload, editing, and batch operations. Prior to version 1.4.0, a business logic flaw…EPSS 0.31%8.1CVE-2025-62510Filerise improper access control vulnerabilityFileRise is a self-hosted web-based file manager with multi-file upload, editing, and batch operations. In version 1.4.0, a regression allowed folder…EPSS 0.31%7.5CVE-2026-33072Filerise hard-coded credentials vulnerabilityFileRise is a self-hosted web file manager / WebDAV server. In versions prior to 3.9.0, a hardcoded default encryption key (default_please_change_thi…EPSS 0.25%7.5CVE-2026-25231Filerise improper access control vulnerabilityFileRise is a self-hosted web file manager / WebDAV server. Versions prior to 3.3.0, the application contains an unauthenticated file read vulnerabil…EPSS 1.6%7.1CVE-2026-33330Filerise incorrect authorization vulnerabilityFileRise is a self-hosted web file manager / WebDAV server. Prior to version 3.10.0, a broken access control issue in FileRise's ONLYOFFICE integrati…EPSS 0.38%5.4CVE-2026-25230Filerise cross-site scripting vulnerabilityFileRise is a self-hosted web file manager / WebDAV server. Prior to 3.3.0, an HTML Injection vulnerability allows an authenticated user to modify th…EPSS 0.21%5.4CVE-2025-68116Filerise cross-site scripting vulnerabilityFileRise is a self-hosted web file manager / WebDAV server. Versions prior to 2.7.1 are vulnerable to Stored Cross-Site Scripting (XSS) due to unsafe…EPSS 0.27%

Source: NIST National Vulnerability Database (record CVE-2026-33071), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.