CVE-2026-34529

CRITICAL EPSS 23.8%
Published Apr 1, 20262mo ago · Modified Jun 17, 20261w ago
9.0 CVSS 3.1
Critical
Find Similar
Published Apr 1, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago

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 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.

CVSS Details

Base Score
9.0
Exploitability
2.3
Impact
6.0
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction Required
Scope Changed
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
23.8% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-79 Cross-site Scripting Injection

Affected Products 1

VendorProductVersionRange
filebrowserfilebrowser* <2.62.2

References 2

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.