How severe is CVE-2026-30933?

CVE-2026-30933 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-30933 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-30933?

CVE-2026-30933 primarily affects Filebrowser. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-30933?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-30933 have an EU (EUVD) identifier?

Yes. CVE-2026-30933 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-10543.

When was CVE-2026-30933 published?

CVE-2026-30933 was published on 2026-03-10 and last updated on 2026-06-17.

CVE-2026-30933

CVE-2026-30933 is a high-severity vulnerability in Filebrowser with a CVSS 3.x base score of 7.5. 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-306.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-10543
Weakness: CWE-306
Affected product: Filebrowser
Published: 2026-03-10
Last modified: 2026-06-17

Description

FileBrowser Quantum is a free, self-hosted, web-based file manager. Prior to 1.3.1-beta and 1.2.2-stable, the remediation for CVE-2026-27611 is incomplete. Password protected shares still disclose tokenized downloadURL via /public/api/share/info. This vulnerability is fixed in 1.3.1-beta and 1.2.2-stable.

Frequently asked questions

What is CVE-2026-30933?: FileBrowser Quantum is a free, self-hosted, web-based file manager. Prior to 1.3.1-beta and 1.2.2-stable, the remediation for CVE-2026-27611 is incomplete. Password protected shares still disclose tokenized downloadURL via /public/api/share/info. This vulnerability is fixed in 1.3.1-beta and 1.2.2-stable.
How severe is CVE-2026-30933?: CVE-2026-30933 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-30933 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-30933?: CVE-2026-30933 primarily affects Filebrowser. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-30933?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-30933 have an EU (EUVD) identifier?: Yes. CVE-2026-30933 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-10543.
When was CVE-2026-30933 published?: CVE-2026-30933 was published on 2026-03-10 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:filebrowser:filebrowser:*:*:*:*:*:*:*:*
cpe:2.3:a:filebrowser:filebrowser:1.2.1:stable:*:*:*:*:*:*
cpe:2.3:a:filebrowser:filebrowser:1.3.0:beta:*:*:*:*:*:*

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