CVE-2026-129163
Dromara free-fs 2.0.1 through 2.3.1 Stored XSS via File Preview Endpoint
CVSS Score
5.4
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-79 |
| Vendor | dromara |
| Product | free-fs |
| Published | Nov 13, 2026 |
Stay Ahead of the Next One
Get instant alerts for dromara free-fs
Be the first to know when new medium vulnerabilities affecting dromara free-fs are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
dromara / free-fs
2.0.1 ≤ 2.3.1
References
vul.yulun.ac.cn: https://vul.yulun.ac.cn/20261024/free-fs/ github.com: https://github.com/dromara/free-fs/issues/28 github.com: https://github.com/dromara/free-fs/blob/f8f4ff2a0b0af8fcd5cbecbf99a4afb7d0b7c020/fs-modules/fs-file/src/main/java/com/xddcodec/fs/file/controller/FileStreamController.java#L209-L237 vulncheck.com: https://www.vulncheck.com/advisories/dromara-free-fs-2.0.1-through-2.3.1-stored-xss-via-file-preview-endpoint
Credits
Wu Yulun