CVE-2026-30933

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

HIGH
7.5
CVSS Score
Published: March 10, 2026 at 04:10 PM UTC
Updated: June 17, 2026 at 10:33 AM UTC
2 products affected across 2 vendorsFilebrowserFilebrowser

Using filebrowser by gtsteffaniak?

Get instant alerts when new vulnerabilities affect filebrowser - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
HIGH7.5
Exploit prediction
EPSS 0.6%
SSVC
PoC

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 1.2.2-stablev < 1.3.1-beta= 1.1.3-stable
Affected range stops below 1.2.2-stable, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.3.1-beta, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (3)

x_refsource_CONFIRMExploitVendor Advisory
Source: cverecord
https://github.com/gtsteffaniak/filebrowser/security/advisories/GHSA-525j-95gf-766f
x_refsource_MISCRelease Notes
Source: cverecord
https://github.com/gtsteffaniak/filebrowser/releases/tag/v1.3.1-beta

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHGitHub_M
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-200CWE-306CWE-602

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card