Stored Cross-Site Scripting Vulnerability in Dromara Free-FS Product
CVE-2026-129163

5.1MEDIUM

Key Information:

Vendor

Dromara

Status
Free-fs
Vendor
CVE Published:
13 November 2026

What is CVE-2026-129163?

The Dromara Free-FS product versions 2.0.1 to 2.3.1 are susceptible to a stored cross-site scripting vulnerability. This flaw allows registered users to upload malicious HTML files, which are then served inline as text/html. An attacker can exploit this by providing a victim with a specific file preview link, enabling the execution of scripts within the application's origin. This could lead to unauthorized exposure of sensitive user files and account information through the compromised API endpoints.

Affected Version(s)

free-fs 2.0.1 <= 2.3.1

References

https://vul.yulun.ac.cn/20261024/free-fs/
third-party-advisory
https://github.com/dromara/free-fs/issues/28
issue-tracking
https://github.com/dromara/free-fs/blob/f8f4ff2a0b0af8fcd...
technical-description

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Wu Yulun
.