CVE-2026-33329 Path traversal in FileRise
Authenticated attackers can exploit path traversal in FileRise to write arbitrary files, delete directories, and probe file existence on the server.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-33329?
CVE-2026-33329 is a high-severity path traversal vulnerability in error311 FileRise, published on 24 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
FileRise 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 Resumable.js chunked upload handler (UploadModel::handleUpload()) is concatenated directly into filesystem paths without any sanitization. An authenticated user with upload permission can exploit this to write files to arbitrary directories on the server, delete arbitrary directories via the post-assembly cleanup, and probe file/directory existence. This issue has been patched in version 3.10.0.
Which versions are affected by CVE-2026-33329?
It affects 1 product.
Products include Filerise Filerise.
How do I fix CVE-2026-33329?
No fix has been published for CVE-2026-33329 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-33329 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-33329 exists.
Other vulnerabilities in error311 FileRise
- CVE-2025-68116 FileRise vulnerable to Cross-Site Scripting (XSS) in SVG File Handling
- CVE-2026-33072 FileRise: Default Encryption Key Enables Token Forgery and Config Decryption
- CVE-2025-62509 FileRise improper ownership/permission validation allowed cross-tenant file operations
- CVE-2025-62510 FileRise insecure folder visibility via name-based mapping and incomplete ACL checks
- CVE-2026-25231 FileRise affected by an Unauthenticated File Read Due to Insufficient Access Control
Sources
Also known as GHSA-c2jm-4wp9-5vrh.