Dromara free-fs 2.0.1 through 2.3.1 contains a stored cross-site scripting vulnerability that allows registered users to run script by uploading HTML files served inline as text/html. Attackers can send a victim the /api/file/stream/preview/{fileId} link to execute script in the application origin, calling /apis endpoints to expose the victim's files and account.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact Low

Subsequent System Integrity Impact Low

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

No data.

No data.

No data.

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/dromara/free-fs/blob/f8f4ff2a0b0af8fcd5cbecbf99a4afb7d0b7c020/fs-modules/fs-file/src/main/java/com/xddcodec/fs/file/controller/FileStreamController.java#L209-L237 cve-icon
https://github.com/dromara/free-fs/issues/28 cve-icon
https://vul.yulun.ac.cn/20261024/free-fs/ cve-icon
https://www.vulncheck.com/advisories/dromara-free-fs-2.0.1-through-2.3.1-stored-xss-via-file-preview-endpoint cve-icon
History

Fri, 13 Nov 2026 17:30:00 +0000

Type Values Removed Values Added
Description Dromara free-fs 2.0.1 through 2.3.1 contains a stored cross-site scripting vulnerability that allows registered users to run script by uploading HTML files served inline as text/html. Attackers can send a victim the /api/file/stream/preview/{fileId} link to execute script in the application origin, calling /apis endpoints to expose the victim's files and account.
Title Dromara free-fs 2.0.1 through 2.3.1 Stored XSS via File Preview Endpoint
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'}

cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-11-13T17:21:53.942Z

Reserved: 2026-11-13T17:09:09.712Z

Link: CVE-2026-129163

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses