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Filebrowser CVE-2026-30933

HIGH
Information Exposure (CWE-200)
2026-03-10 security-advisories@github.com GHSA-525j-95gf-766f
Information Disclosure Filebrowser Suse
7.5
CVSS 3.1 · GitHub Advisory
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Severity by source

GitHub Advisory PRIMARY
7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
SUSE
HIGH
qualitative

Primary rating from GitHub Advisory.

CVSS VectorGitHub Advisory

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

3
Patch released
Mar 31, 2026 - 21:13 nvd
Patch available
Analysis Generated
Mar 12, 2026 - 21:55 vuln.today
CVE Published
Mar 10, 2026 - 18:18 nvd
HIGH 7.5

DescriptionGitHub Advisory

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.

AnalysisAI

FileBrowser versions prior to 1.3.1-beta and 1.2.2-stable leak authentication tokens through the /public/api/share/info endpoint, allowing unauthenticated attackers to bypass password protections on shared files. The vulnerability stems from an incomplete fix to CVE-2026-27611 and enables token disclosure that could facilitate unauthorized file access. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Access /public/api/share/info endpoint
Exploit
Request password-protected share metadata
Execution
Extract tokenized downloadURL from response
Impact
Use token to bypass access controls
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Vulnerability AssessmentAI

Exploitation FileBrowser Quantum versions prior to 1.3.1-beta and 1.2.2-stable with password-protected shares enabled. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment CVSS 7.5 (HIGH). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker could exploit this vulnerability to compromise the affected system.
Remediation Fixed in version 1.3.1. … Detailed patch versions, workarounds, and compensating controls in full report.
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Recommended ActionAI

Within 24 hours: Identify all FileBrowser Quantum instances in your environment and document versions currently deployed. …

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More from same product – last 7 days

CVE-2026-48777 CRITICAL
9.3 Jun 16

Path traversal in FileBrowser Quantum (gtsteffaniak fork) versions prior to 1.3.2-stable, 1.4.0-beta, and 1.4.1-beta all

Vendor StatusVendor

SUSE

Severity: High

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CVE-2026-30933 vulnerability details – vuln.today
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