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CVE-2026-33329

Filerise path traversal

8.1 HIGHPublic exploitEPSS 0.61%
  1. Published24 Mar 2026

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityNone
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Affected products

Filerise≥ 1.0.1 < 3.10.0

Remediation

Fixed in
Filerise≥ 3.10.0

References

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Frequently asked

Is CVE-2026-33329 being actively exploited?

CVE-2026-33329 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.61%.

How severe is CVE-2026-33329?

CVE-2026-33329 has a CVSS 3.1 base score of 8.1, rated high. EPSS estimates a 0.61% probability of exploitation.

Which products are affected by CVE-2026-33329?

Affected products include Filerise.

How do I fix CVE-2026-33329?

Upgrade affected software to a fixed version, for example Filerise 3.10.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-33329 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.