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CVE-2026-35605

Filebrowser path traversal

7.5 HIGHPublic exploitEPSS 0.44%
  1. Published7 Apr 2026

Description

File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.63.1, the Matches() function in rules/rules.go uses strings.HasPrefix() without a trailing directory separator when matching paths against access rules. A rule for /uploads also matches /uploads_backup/, granting or denying access to unintended directories. This vulnerability is fixed in 2.63.1.

CVSS 3.1 breakdown

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

Affected products

Filebrowser< 2.63.1

Remediation

Fixed in
Filebrowser≥ 2.63.1

References

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Frequently asked

Is CVE-2026-35605 being actively exploited?

CVE-2026-35605 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.44%.

How severe is CVE-2026-35605?

CVE-2026-35605 has a CVSS 3.1 base score of 7.5, rated high. EPSS estimates a 0.44% probability of exploitation.

Which products are affected by CVE-2026-35605?

Affected products include Filebrowser.

How do I fix CVE-2026-35605?

Upgrade affected software to a fixed version, for example Filebrowser 2.63.1 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-35605 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.