How severe is CVE-2026-33477?

CVE-2026-33477 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2026-33477 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-33477?

CVE-2026-33477 affects Filerise. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-33477?

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

Does CVE-2026-33477 have an EU (EUVD) identifier?

Yes. CVE-2026-33477 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-16277.

When was CVE-2026-33477 published?

CVE-2026-33477 was published on 2026-03-26 and last updated on 2026-06-17.

CVE-2026-33477

CVE-2026-33477 is a medium-severity vulnerability in Filerise with a CVSS 3.x base score of 4.3. 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-863.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-16277
Weakness: CWE-863
Affected product: Filerise
Published: 2026-03-26
Last modified: 2026-06-17

Description

FileRise is a self-hosted web-based file manager with multi-file upload, editing, and batch operations. In versiosn 2.3.7 through 3.10.0, the file snippet endpoint `/api/file/snippet.php` allows an authenticated user with only `read_own` access to a folder to retrieve snippet content from files uploaded by other users in the same folder. This is a server-side authorization flaw in the `read_own` enforcement for hover previews. Version 3.11.0 fixes the issue.

Frequently asked questions

What is CVE-2026-33477?: FileRise is a self-hosted web-based file manager with multi-file upload, editing, and batch operations. In versiosn 2.3.7 through 3.10.0, the file snippet endpoint `/api/file/snippet.php` allows an authenticated user with only `read_own` access to a folder to retrieve snippet content from files uploaded by other users in the same folder. This is a server-side authorization flaw in the `read_own` enforcement for hover previews. Version 3.11.0 fixes the issue.
How severe is CVE-2026-33477?: CVE-2026-33477 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2026-33477 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-33477?: CVE-2026-33477 affects Filerise. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-33477?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-33477 have an EU (EUVD) identifier?: Yes. CVE-2026-33477 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-16277.
When was CVE-2026-33477 published?: CVE-2026-33477 was published on 2026-03-26 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:filerise:filerise:*:*:*:*:*:*:*:*

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