Vulnerability details

CVE-2026-34529

filebrowser filebrowser

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

CVSS 3.1

7.6High

Official 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 scores

Score	Version	Source	Vector
7.6High	3.1	CVEProject cvelistV5 (CNA) (GitHub_M)	`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N`

Affected products

Vendor	Product	Versions	Source
filebrowser	filebrowser	< 2.62.2	CVEProject cvelistV5 (CNA)

References and advisories

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

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Details

Published: 2026-04-02
Last updated: 2026-04-02
State: Published
Assigner (CNA): GitHub_M

Exploit prediction (EPSS)

0.32%

Probability of exploitation in 30 days

25.9%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: No
Exploitation: Proof of concept
Technical impact: Partial

Weaknesses (CWE)

CWE-79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')