# CVE-2026-34530: File Browser vulnerable to Stored Cross-site Scripting via text/template branding injection

Source: https://junglewise.ai/threats/cve-2026-34530-file-browser-vulnerable-to-stored-cross-site-scripting-via-text  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-25  
License: CC BY 4.0 with a link back

CVE-2026-34530 · Severity: low · CVSS 3.1 · Published 2026-06-25

File Browser vulnerable to Stored Cross-site Scripting via text/template branding injection in github.com/filebrowser/filebrowser

Technologies: [github.com/filebrowser/filebrowser (Go)](https://junglewise.ai/threats/technologies/github-com-filebrowser-filebrowser), [github.com/filebrowser/filebrowser/v2 (Go)](https://junglewise.ai/threats/technologies/github-com-filebrowser-filebrowser-v2). Vendors: [Go](https://junglewise.ai/threats/vendors/go).

## Quick answers

**Is CVE-2026-34530 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-34530 being exploited in the wild.

**How severe is CVE-2026-34530?** Low severity, with a CVSS score of 3.1, published 25 June 2026.

**Which products and versions are affected?** github.com/filebrowser/filebrowser (Go) SEMVER:introduced=0; github.com/filebrowser/filebrowser/v2 (Go) SEMVER:introduced=0,fixed=2.62.2.

**Is there a fix for CVE-2026-34530?** Yes. github.com/filebrowser/filebrowser/v2 (Go): upgrade to 2.62.2 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2026-34530?** Check whether you run github.com/filebrowser/filebrowser (Go) or github.com/filebrowser/filebrowser/v2 (Go) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- github.com/filebrowser/filebrowser/v2 (Go): upgrade to 2.62.2 or later

  ```sh
  go get github.com/filebrowser/filebrowser/v2@v2.62.2
  ```


## Affected products

- github.com/filebrowser/filebrowser (Go) SEMVER:introduced=0
- github.com/filebrowser/filebrowser/v2 (Go) SEMVER:introduced=0,fixed=2.62.2

## Identifiers

- CVE-2026-34530
- GHSA-xfqj-3vmx-63wv
- GO-2026-5754

## Related threats

- [File Browser sensitive information disclosure in Share API](https://junglewise.ai/threats/cve-2026-62684-file-browser-sensitive-information-disclosure-in-share-api)
- [File Browser path traversal in archive builder via backslash filenames](https://junglewise.ai/threats/cve-2026-62843-file-browser-path-traversal-in-archive-builder-via-backslash)
- [File Browser directory traversal and isolation bypass via username normalization collision](https://junglewise.ai/threats/cve-2026-62685-file-browser-directory-traversal-and-isolation-bypass-via)
- [File Browser path traversal via dangling symlink in ScopedFs](https://junglewise.ai/threats/cve-2026-55668-file-browser-path-traversal-via-dangling-symlink-in-scopedfs)
- [File Browser share links remain accessible after Share/Download permissions are revoked](https://junglewise.ai/threats/cve-2026-35604-file-browser-share-links-remain-accessible-after-share-download)