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CVE-2026-33330

Filerise broken access control

7.1 HIGHPublic exploitEPSS 0.38%
  1. Published24 Mar 2026

Description

FileRise is a self-hosted web file manager / WebDAV server. Prior to version 3.10.0, a broken access control issue in FileRise's ONLYOFFICE integration allows an authenticated user with read-only access to obtain a signed save callbackUrl for a file and then directly forge the ONLYOFFICE save callback to overwrite that file with attacker-controlled content. This issue has been patched in version 3.10.0.

CVSS 3.1 breakdown

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

Affected products

Filerise< 3.10.0

Remediation

Fixed in
Filerise≥ 3.10.0

References

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Frequently asked

Is CVE-2026-33330 being actively exploited?

CVE-2026-33330 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.38%.

How severe is CVE-2026-33330?

CVE-2026-33330 has a CVSS 3.1 base score of 7.1, rated high. EPSS estimates a 0.38% probability of exploitation.

Which products are affected by CVE-2026-33330?

Affected products include Filerise.

How do I fix CVE-2026-33330?

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-2026-33330 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.