CVE-2026-34529: Filebrowser

Critical severity, CVSS 9.0. EPSS: 0.4% chance of exploitation in the next 30 days.

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.

Affected products

• Filebrowser Filebrowser: before 2.62.2 (fixed in 2.62.2)

Published 2026-04-01. Last modified 2026-06-17.