Path Traversal in Error311 Filerise
CVE-2026-33329
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.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (40.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 40.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.005 · change: -0.001
Affected products
- Error311 Filerise — versions >= 1.0.1, < 3.10.0
- Filerise
Weakness classification (CWE)
References
- github.com/error311/FileRise/security/advisories/GHSA-c2jm-4wp9-5vrh (Exploit, Mitigation, Vendor Advisory)
- github.com/error311/FileRise/commit/3871f9fd1661688bed4f7dd23912be0ebf50973c (Patch)
- github.com/error311/FileRise/releases/tag/v3.10.0 (Product, Release Notes)
Frequently asked questions
- What is CVE-2026-33329?
- CVE-2026-33329 is a high-severity vulnerability in Error311 Filerise, classified under Path Traversal. CVSS score: 8.1/10. Published 2026-03-24.
- How severe is CVE-2026-33329?
- High severity. CVSS v3 base score is 8.1 out of 10.