CVE-2026-34530
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.
Does this matter?
Lower severity and a low EPSS score (0.36%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 6.9 MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:N
- EPSS
- 0.36% probability · 29th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- filebrowser/filebrowser
- Source
- security-advisories@github.com
References
- https://github.com/filebrowser/filebrowser/releases/tag/v2.62.2Product, Release Notes
- https://github.com/filebrowser/filebrowser/security/advisories/GHSA-xfqj-3vmx-63wvExploit, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.