What is CVE-2026-34529?

CVE-2026-34529 is a high-severity vulnerability in Filebrowser, classified under Cross-site Scripting. CVSS score: 7.6/10. Published 2026-04-01.

How severe is CVE-2026-34529?

High severity. CVSS v3 base score is 7.6 out of 10.

XSS in Filebrowser

CVE-2026-34529

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…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (12.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N.

Affected products

Filebrowser — versions < 2.62.2

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

https://github.com/filebrowser/filebrowser/security/advisories/GHSA-5vpr-4fgw-f69h (x_refsource_CONFIRM)
https://github.com/filebrowser/filebrowser/releases/tag/v2.62.2 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-34529?: CVE-2026-34529 is a high-severity vulnerability in Filebrowser, classified under Cross-site Scripting. CVSS score: 7.6/10. Published 2026-04-01.
How severe is CVE-2026-34529?: High severity. CVSS v3 base score is 7.6 out of 10.