CVE-2026-34529CWE-79

File Browser is vulnerable to Stored Cross-site Scripting via crafted EPUB file

High · published April 1, 2026

CVSS v3.1
7.6
EPSS
0%
Percentile
32.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.6 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00394 · 32.4th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-04-01T20:39Z
EPSS history
Timeline
  • 01 APR 20:39Z
    File Browser is vulnerable to Stored Cross-site Scripting via crafted EPUB file
    cvelistv5