How severe is CVE-2026-28492?

CVE-2026-28492 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-28492 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-28492?

CVE-2026-28492 affects Filebrowser. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-28492?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-28492 have an EU (EUVD) identifier?

Yes. CVE-2026-28492 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9881.

When was CVE-2026-28492 published?

CVE-2026-28492 was published on 2026-03-05 and last updated on 2026-06-17.

CVE-2026-28492

CVE-2026-28492 is a medium-severity vulnerability in Filebrowser with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-200.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v4: 7.1
EPSS exploit prediction: 0% (24th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-9881
Weakness: CWE-200
Affected product: Filebrowser
Published: 2026-03-05
Last modified: 2026-06-17

Description

File Browser provides a file managing interface within a specified directory and it can be used to upload, delete, preview, rename and edit files. Prior to version 2.61.0, when a user creates a public share link for a directory, the withHashFile middleware in http/public.go uses filepath.Dir(link.Path) to compute the BasePathFs root. This sets the filesystem root to the parent directory instead of the shared directory itself, allowing anyone with the share link to browse and download files from all sibling directories. This issue has been patched in version 2.61.0.

Frequently asked questions

What is CVE-2026-28492?: File Browser provides a file managing interface within a specified directory and it can be used to upload, delete, preview, rename and edit files. Prior to version 2.61.0, when a user creates a public share link for a directory, the withHashFile middleware in http/public.go uses filepath.Dir(link.Path) to compute the BasePathFs root. This sets the filesystem root to the parent directory instead of the shared directory itself, allowing anyone with the share link to browse and download files from all sibling directories. This issue has been patched in version 2.61.0.
How severe is CVE-2026-28492?: CVE-2026-28492 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-28492 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-28492?: CVE-2026-28492 affects Filebrowser. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-28492?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-28492 have an EU (EUVD) identifier?: Yes. CVE-2026-28492 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9881.
When was CVE-2026-28492 published?: CVE-2026-28492 was published on 2026-03-05 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:filebrowser:filebrowser:*:*:*:*:*:*:*:*

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