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

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.

Scores

EPSS (exploitation in 30 days)

0.37% · top 69% of all CVEs (6 Nov 2026)

CISA SSVC

Exploitation: poc · Automatable: no · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.9.

Weakness

• CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (opens in a new tab)All about CWE-79 and its CVEs

Affected products

• filebrowser · filebrowser

  • affected < 2.62.2

Affected packages

From reviewed advisories of the GitHub Advisory Database.

• Gogithub.com/filebrowser/filebrowser/v2GHSA-xfqj-3vmx-63wv (opens in a new tab)

References (2)

• https://github.com/filebrowser/filebrowser/security/advisories/GHSA-xfqj-3vmx-63wv (opens in a new tab)x_refsource_CONFIRM
• https://github.com/filebrowser/filebrowser/releases/tag/v2.62.2 (opens in a new tab)x_refsource_MISC

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisory GHSA-xfqj-3vmx-63wv (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2026-34530](https://trackcve.app/badge/CVE-2026-34530.svg)](https://trackcve.app/cve/CVE-2026-34530)

Record last updated 4 Apr 2026, 03:14 UTC.