io.jmix.rest:jmix-rest allows XSS in the /files Endpoint of the Generic REST API
Impact
The input parameter, which consists of a file path and name, can be manipulated to return the Content-Type header with text/html if the name part ends with .html. This could allow malicious JavaScript code to be executed in the browser. For a successful attack, a malicious file needs to be uploaded beforehand.
The severity of the vulnerability is mitigated by the fact that the application UI and the generic REST API are typically accessible only to authenticated users. Additionally, the /files endpoint in Jmix requires specific permissions and is disabled by default.
Patches
The problem has been fixed in Jmix 1.6.2+ and 2.4.0+.
Workarounds
A workaround for those who are unable to upgrade: Disable Files Endpoint in Jmix Application.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | io.jmix.rest:jmix-rest | >= 1.0.0, < 1.6.2, >= 2.0.0, < 2.4.0 | 1.6.2, 2.4.0 |
References
- https://github.com/jmix-framework/jmix/security/advisories/GHSA-x27v-f838-jh93
- https://nvd.nist.gov/vuln/detail/CVE-2025-32951
- https://github.com/jmix-framework/jmix/issues/3804
- https://github.com/jmix-framework/jmix/issues/3836
- https://github.com/jmix-framework/jmix/commit/6a66aa3adb967159a30d703e80403406f4c8f7a2
- https://github.com/jmix-framework/jmix/commit/c589ef4e2b25620770b8036f4ad05f1a6250cb6a
- https://github.com/jmix-framework/jmix/commit/cc97e6ff974b9e7af8160fab39cc5866169daa37
- https://github.com/jmix-framework/jmix/commit/f4e6fb05bd245cf36f3e9319aaa0fcd540d024aa
- https://docs.jmix.io/jmix/files-vulnerabilities.html
- https://docs.jmix.io/jmix/files-vulnerabilities.html#disable-files-endpoint-in-jmix-application
- https://github.com/jmix-framework/jmix
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N- Weakness (CWE)
CWE-79- Platform
- Java / Kotlin (Maven)
- Package
io.jmix.rest:jmix-rest- Disclosed
- 22.04.2025
- Updated
- 11.10.2026 12:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-x27v-f838-jh93 - CC BY 4.0
Vulnerability history: io.jmix.rest:jmix-rest
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
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