CVE-2026-30933: FileBrowser Quantum Incomplete Remediation of CVE-2026-27611: Password-Protected Share Bypass via /public/api/share/info

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-03-10 · updated 2026-06-17
Weakness: CWE-200

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.

Affected products

filebrowser: through 1.2.9; 1.2.1-stable, 1.3.0-beta

References

https://github.com/gtsteffaniak/filebrowser/releases/tag/v1.2.2-stable
https://github.com/gtsteffaniak/filebrowser/releases/tag/v1.3.1-beta
https://github.com/gtsteffaniak/filebrowser/security/advisories/GHSA-525j-95gf-766f

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