Is CVE-2026-33071 in the CISA KEV catalog?

No. CVE-2026-33071 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-33071?

CVE-2026-33071 has a CVSS v3 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2026-33071?

CVE-2026-33071 has an EPSS score of 0.62% (45th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-33071?

Upgrade filerise to 3.8.0 or later.

CVE & CISA-KEV Catalog

CVE-2026-33071

MEDIUM

4.3

CVSS v3

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.

CWE-434Unrestricted File Upload CWE-552

How to fix

Remediation Available

fileriseNVD

Affected:< 3.8.0Fixed in:3.8.0CVE-2026-33071derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

0.62%probability of exploitation in 30 days

45thpercentile

Moderate risk: more likely to be exploited than 45% of all known CVEs.

References

Exploit1

github.com

Release Notes1

github.com

Embed a live status badge for CVE-2026-33071

Markdown

[![CVE-2026-33071](https://tridentstack.com/cve/badge/CVE-2026-33071.svg)](https://tridentstack.com/cve/CVE-2026-33071)

HTML

<a href="https://tridentstack.com/cve/CVE-2026-33071"><img src="https://tridentstack.com/cve/badge/CVE-2026-33071.svg" alt="CVE-2026-33071"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-03-23.