CVE-2026-34530

MEDIUM

File Browser is vulnerable to Stored Cross-Site Scripting via text/template branding injection

Title source: cna

Description

File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to version 2.62.2, the SPA index page in File Browser is vulnerable to Stored Cross-Site Scripting (XSS) via admin-controlled branding fields. An admin who sets branding.name to a malicious payload injects persistent JavaScript that executes for ALL visitors, including unauthenticated users. This issue has been patched in version 2.62.2.

References (2)

Core 2

Core References

X_Refsource_Confirm x_refsource_confirm

https://github.com/filebrowser/filebrowser/security/advisories/GHSA-xfqj-3vmx-63wv

X_Refsource_Misc x_refsource_misc

https://github.com/filebrowser/filebrowser/releases/tag/v2.62.2

Scores

CVSS v3 6.9

EPSS 0.0036

EPSS Percentile 27.3%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:N

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact partial

Details

CWE

CWE-79

Status published

Products (2)

filebrowser/filebrowser < 2.62.2 (2 CPE variants)

filebrowser/filebrowser 0 - 2.62.2Go

Published Apr 01, 2026

Tracked Since Apr 02, 2026