jhipster generator-jhipster/react-jhipster Data Utils data-utils.ts.ejs openFile cross site scripting

Summaryinfo

A vulnerability was found in jhipster generator-jhipster and react-jhipster. It has been declared as problematic. The affected element is the function openFile of the file generators/client/generators/common/templates/src/main/webapp/app/shared/jhipster/data-utils.ts.ejs of the component Data Utils. Executing a manipulation can lead to cross site scripting. This vulnerability appears as CVE-2026-107303. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability has been found in jhipster generator-jhipster and react-jhipster (version now known) and classified as problematic. This vulnerability affects the function openFile of the file generators/client/generators/common/templates/src/main/webapp/app/shared/jhipster/data-utils.ts.ejs of the component Data Utils. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. CVE summarizes:

JHipster is a development platform to quickly generate, develop, and deploy modern web applications and microservice architectures. Prior to generator-jhipster 9.4.0 and react-jhipster 1.1.0, generated applications can persist attacker-controlled Blob data and companion ContentType values, return them through generated REST endpoints, and pass them to the generated openFile helper in generators/client/generators/common/templates/src/main/webapp/app/shared/jhipster/data-utils.ts.ejs. The helper uses the returned ContentType as the browser Blob MIME type and opens an object URL, so a normal authenticated user with write access to a Blob-bearing entity can store active HTML or SVG content that may execute under the application origin when a privileged user opens it. Exploitability depends on the generated application's content security policy and target-browser Blob behavior. This issue is fixed in generator-jhipster 9.4.0 and react-jhipster 1.1.0.

The advisory is available at github.com. This vulnerability was named CVE-2026-107303 since 10/07/2026. The exploitation appears to be easy. The attack can be initiated remotely. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• JavaScript Library

Vendor

• jhipster

Name

• generator-jhipster
• react-jhipster

Website

• Product: https://github.com/jhipster/generator-jhipster/

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