Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-34529— File Browser is vulnerable to Stored Cross-site Scripting via crafted EPUB file

Quick assessment

Affected
filebrowser filebrowser
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

File Browser是File Browser开源的一个文件管理界面，在指定的目录，它可以用来上传，删除，预览和编辑文件。 File Browser 2.62.2之前版本存在跨站脚本漏洞，该漏洞源于EPUB预览功能存在存储型跨站脚本漏洞，特制EPUB文件中嵌入的JavaScript可能在受害者预览文件时在其浏览器中执行。

CVSS 7.6 · High EPSS 0.39% · P31
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-34529

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
File Browser is vulnerable to Stored Cross-site Scripting via crafted EPUB file
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
File Browser 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
File Browser是File Browser开源的一个文件管理界面，在指定的目录，它可以用来上传，删除，预览和编辑文件。 File Browser 2.62.2之前版本存在跨站脚本漏洞，该漏洞源于EPUB预览功能存在存储型跨站脚本漏洞，特制EPUB文件中嵌入的JavaScript可能在受害者预览文件时在其浏览器中执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
filebrowser filebrowser < 2.62.2 -

II. Public POCs for CVE-2026-34529

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 8557 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-34529

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-34529 (1)

Vendor Pages for CVE-2026-34529 (1)

Same Patch Batch · filebrowser · 2026-04-01 · 3 CVEs total

CVE-2026-34528 8.1 HIGH File Browser's Signup Grants Execution Permissions When Default Permissions Includes Execu
CVE-2026-34530 6.9 MEDIUM File Browser is vulnerable to Stored Cross-Site Scripting via text/template branding injec

IV. Related Vulnerabilities

Same product: filebrowser
Same vendor: filebrowser
Same weakness: CWE-79

V. Comments for CVE-2026-34529

No comments yet

Leave a comment