CVE-2026-129163

EUVD-2026-125604
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.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.4 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Common Weakness Enumeration
References
https://github.com/dromara/free-fs/blob/f8f4ff2a0b0af8fcd5cbecbf99a4afb7d0b7c020/fs-modules/fs-file/src/main/java/com/xddcodec/fs/file/controller/FileStreamController.java#L209-L237
https://github.com/dromara/free-fs/issues/28
https://vul.yulun.ac.cn/20261024/free-fs/
https://www.vulncheck.com/advisories/dromara-free-fs-2.0.1-through-2.3.1-stored-xss-via-file-preview-endpoint