CVE-2026-34530 Details
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.
A stored cross-site scripting vulnerability has been identified in File Browser versions through 2.62.1. The issue arises on the single-page application (SPA) index page, where admin-controlled branding fields are rendered without proper HTML escaping. An admin can inject a malicious script into the 'branding.name' field, which then executes for all users, including those who are unauthenticated.
Users can upgrade to File Browser version 2.62.2 or later, where this vulnerability has been patched.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 4, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/filebrowser/filebrowser/releases/tag/v2.62.2 | [email protected] | ProductRelease Notes |
| https://github.com/filebrowser/filebrowser/security/advisories/GHSA-xfqj-3vmx-63wv | [email protected] | ExploitVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-79 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| filebrowser filebrowser | < 2.62.2 |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 6, 2026 | Initial Analysis | [email protected] |
| Apr 1, 2026 | New CVE Received | [email protected] |