Vulnerability record · CVE-2026-34529 · published 1 April 2026

CVE-2026-34529: Filebrowser cross-site scripting vulnerability

Filebrowser · Filebrowser

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 EPUB preview function in File Browser is vulnerable to Stored Cross-Site Scripting (XSS). JavaScript embedded in a crafted EPUB file executes in the victim's browser when they preview the file. This issue has been patched in version 2.62.2.

9.0 CVSS 3.1 Critical EPSS 0.39% · top 69.0% CWE-79 · Cross-site scripting

9.0CVSS 3.1 base score

0.39%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

2References, 1 tagged exploit

17 Jun 2026Last modified by NVD

Description

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Filebrowser Filebrowser

References

Link	Tags
https://github.com/filebrowser/filebrowser/releases/tag/v2.62.2	ProductRelease Notes
https://github.com/filebrowser/filebrowser/security/advisories/GHSA-5vpr-4fgw-f69h	ExploitVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2026-32760Filebrowser improper privilege management vulnerabilityFile Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. In versions …EPSS 0.69%20 Mar 2026 9.8CVE-2026-34528Filebrowser improper privilege management vulnerabilityFile Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to ver…EPSS 0.66%1 Apr 2026 9.0CVE-2023-39612Filebrowser cross-site scripting vulnerabilityA cross-site scripting (XSS) vulnerability in FileBrowser before v2.23.0 allows an authenticated attacker to escalate privileges to Administrator via…EPSS 0.88%16 Sep 2023 8.8CVE-2026-35607Filebrowser improper privilege management vulnerabilityFile Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.6…EPSS 0.56%7 Apr 2026 8.8CVE-2021-46398Filebrowser cross-site request forgery vulnerabilityA Cross-Site Request Forgery vulnerability exists in Filebrowser < 2.18.0 that allows attackers to create a backdoor user with admin privilege and ge…EPSS 6.7%4 Feb 2022 8.2CVE-2026-35604Filebrowser incorrect authorization vulnerabilityFile Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.6…EPSS 0.43%7 Apr 2026 8.1CVE-2026-29188Filebrowser improper access control vulnerabilityFile Browser provides a file managing interface within a specified directory and it can be used to upload, delete, preview, rename and edit files. Pr…EPSS 0.59%5 Mar 2026 8.1CVE-2026-25890Filebrowser incorrect authorization vulnerabilityFile Browser provides a file managing interface within a specified directory and it can be used to upload, delete, preview, rename and edit files. Pr…EPSS 0.55%9 Feb 2026

Source: NIST National Vulnerability Database (record CVE-2026-34529), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.