How severe is CVE-2026-33070?

CVE-2026-33070 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2026-33070 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-33070?

CVE-2026-33070 affects Filerise. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-33070?

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

Does CVE-2026-33070 have an EU (EUVD) identifier?

Yes. CVE-2026-33070 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-13640.

When was CVE-2026-33070 published?

CVE-2026-33070 was published on 2026-03-20 and last updated on 2026-06-17.

CVE-2026-33070

CVE-2026-33070 is a low-severity vulnerability in Filerise with a CVSS 3.x base score of 3.7. 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-306.

Key facts

Severity: Low (CVSS 3.x base score 3.7)
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-13640
Weakness: CWE-306
Affected product: Filerise
Published: 2026-03-20
Last modified: 2026-06-17

Description

FileRise is a self-hosted web file manager / WebDAV server. In versions prior to 3.8.0, a missing-authentication vulnerability in the deleteShareLink endpoint allows any unauthenticated user to delete arbitrary file share links by providing only the share token, causing denial of service to shared file access. The POST /api/file/deleteShareLink.php endpoint calls FileController::deleteShareLink() which performs no authentication, authorization, or CSRF validation before deleting a share link. Any anonymous HTTP client can destroy share links. This issue is fixed in version 3.8.0.

Frequently asked questions

What is CVE-2026-33070?: FileRise is a self-hosted web file manager / WebDAV server. In versions prior to 3.8.0, a missing-authentication vulnerability in the deleteShareLink endpoint allows any unauthenticated user to delete arbitrary file share links by providing only the share token, causing denial of service to shared file access. The POST /api/file/deleteShareLink.php endpoint calls FileController::deleteShareLink() which performs no authentication, authorization, or CSRF validation before deleting a share link. Any anonymous HTTP client can destroy share links. This issue is fixed in version 3.8.0.
How severe is CVE-2026-33070?: CVE-2026-33070 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2026-33070 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-33070?: CVE-2026-33070 affects Filerise. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-33070?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-33070 have an EU (EUVD) identifier?: Yes. CVE-2026-33070 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-13640.
When was CVE-2026-33070 published?: CVE-2026-33070 was published on 2026-03-20 and last updated on 2026-06-17.

References

Affected products (1)

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

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