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Vulnerability of RESTEasy: Cross Site Scripting via PathParam

Synthesis of the vulnerability 

An attacker can trigger a Cross Site Scripting via PathParam of RESTEasy, in order to run JavaScript code in the context of the web site.
Vulnerable systems: RESTEasy JBoss OpenSource.
Severity of this threat: 2/4.
Creation date: 11/06/2021.
Références of this weakness: CVE-2021-20293, RHBUG-1942819, VIGILANCE-VUL-35684.

Description of the vulnerability 

An attacker can trigger a Cross Site Scripting via PathParam of RESTEasy, in ord...
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This vulnerability alert impacts software or systems such as RESTEasy JBoss OpenSource.

Our Vigil@nce team determined that the severity of this computer weakness alert is medium.

The trust level is of type confirmed by the editor, with an origin of document.

An attacker with a expert ability can exploit this computer vulnerability.

Solutions for this threat 

This vulnerability workaround will be public soon.
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