CVE-2026-48777: Improper Limitation of a Pathname to a Restricted Directory

FileBrowser Quantum is a free, self-hosted, web-based file manager. Versions prior to 1.3.2-stable, 1.4.0-beta and 1.4.1-beta are vulnerable to Path Traversal through the publicPatchHandler in backend/http/public.go which joins user-controlled fromPath and toPath body fields with the trusted...

Incomplete List of Disallowed Inputs

Overview github.com/filebrowser/filebrowser/http is a Affected versions of this package are vulnerable to Incomplete List of Disallowed Inputs. via the ParseCommand process. An attacker can execute arbitrary operating system commands by injecting shell metacharacters into allowed command input,...

Incomplete List of Disallowed Inputs

Overview github.com/filebrowser/filebrowser/v2/http is a web file browser. Affected versions of this package are vulnerable to Incomplete List of Disallowed Inputs. via the ParseCommand process. An attacker can execute arbitrary operating system commands by injecting shell metacharacters into...

Symlink Attack

Overview github.com/filebrowser/filebrowser/v2/http is a web file browser. Affected versions of this package are vulnerable to Symlink Attack inadequate validation of symlink targets in the file access process. An attacker can access or modify files outside of the intended user scope by creating ...

Symlink Attack

Overview Affected versions of this package are vulnerable to Symlink Attack inadequate validation of symlink targets in the file access process. An attacker can access or modify files outside of the intended user scope by creating or leveraging symbolic links that point to locations beyond the...

Improper Validation of Specified Quantity in Input

Overview Affected versions of this package are vulnerable to Improper Validation of Specified Quantity in Input via the api/login process. An attacker can exhaust system resources and cause service disruption by submitting extremely large password values during authentication requests. Remediatio...

Improper Validation of Specified Quantity in Input

Overview Affected versions of this package are vulnerable to Improper Validation of Specified Quantity in Input via the api/login process. An attacker can exhaust system resources and cause service disruption by submitting extremely large password values during authentication requests. Remediatio...

Improper Validation of Specified Quantity in Input

Overview github.com/filebrowser/filebrowser/v2/http is a web file browser. Affected versions of this package are vulnerable to Improper Validation of Specified Quantity in Input via the api/login process. An attacker can exhaust system resources and cause service disruption by submitting extremel...

File Browser: Improper Access Control Occurs via Pre-Created Public Share for a Non-existent Path

Summary This is similar vulnrability of CVE-2026-0035, which was fixed in Android MediaProvider with high severity. In the original Java issue, MediaStore.createWriteRequest accepted attacker-controlled URIs and created a future grant even when the referenced media item did not exist yet. The...

Authorization Bypass Through User-Controlled Key

Overview Affected versions of this package are vulnerable to Authorization Bypass Through User-Controlled Key through the DeleteWithPathPrefix process. An attacker can delete share-link records belonging to other users, including administrators, by issuing a legitimate delete operation on a file...

Authorization Bypass Through User-Controlled Key

Overview github.com/filebrowser/filebrowser/v2/http is a web file browser. Affected versions of this package are vulnerable to Authorization Bypass Through User-Controlled Key through the DeleteWithPathPrefix process. An attacker can delete share-link records belonging to other users, including...

Authorization Bypass Through User-Controlled Key

Overview Affected versions of this package are vulnerable to Authorization Bypass Through User-Controlled Key through the DeleteWithPathPrefix process. An attacker can delete share-link records belonging to other users, including administrators, by issuing a legitimate delete operation on a file...

File Browser: Cross-user unauthorized share-link deletion via unbounded prefix match in DeleteWithPathPrefix

Summary A low-privileged authenticated user of filebrowser with create + delete permissions in their own isolated scope can silently destroy share-link records belonging to any other user — including the administrator — by performing a legitimate DELETE on a file in their own directory whose...

The vulnerability of the FileBrowser Quantum file manager, related to incorrect restrictions on the path name of the restricted directory, allows a hacker to delete any files from the system.

The vulnerability of the FileBrowser Quantum file manager is related to an incorrect limitation on the path name for the restricted access directory. Exploiting this vulnerability could allow a remote attacker to delete any files from the system...

CVE-2026-54093

creationtimestamp| type| source ---|---|--- 2026-06-06 05:55:25+00:00| published-proof-of-concept| https://github.com/filebrowser/filebrowser/security/advisories/GHSA-gxjx-7m74-hcq8...

CVE-2026-54092

creationtimestamp| type| source ---|---|--- 2026-06-03 09:33:53+00:00| published-proof-of-concept| https://github.com/filebrowser/filebrowser/security/advisories/GHSA-w5fm-68j4-fpc4...

PT-2026-47627

Name of the Vulnerable Software and Affected Versions FileBrowser Quantum versions prior to 1.3.3-stable FileBrowser Quantum versions prior to 1.4.2-beta Description Path Traversal is possible through the publicPatchHandler function in backend/http/public.go. The issue occurs because the software...

FileBrowser Quantum: unauthenticated user share share info

Impact Some sensitive info -- such as source and path can get exposed. Patches Update to the latest version Workarounds no...

Cross-site Scripting (XSS)

FileBrowser Quantum is vulnerable to Cross-Site Scripting XSS. The vulnerability is due to improper escaping of user-controlled share metadata fields when rendered in HTML using text/template, which allows an attacker to inject and execute malicious scripts when users visit a shared URL...

CVE-2026-44542

FileBrowser Quantum is a free, self-hosted, web-based file manager. Prior to 1.3.1-stable and 1.3.9-beta, attacker-controlled path input is joined with a trusted base path prior to sanitization, allowing traversal sequences e.g., ../ to escape the intended shared directory. As a result, an...