Name: CVE-2021-20293: Improper Neutralization of Input During Web Page Generation
Creator: Rapid7
Published: 2021-06-10T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2021-20293, CWE-79, CVSS 6.1, EPSS 0.00402

A reflected Cross-Site Scripting (XSS) flaw was found in RESTEasy in all versions of RESTEasy up to 4.6.0.Final, where it did not properly handle URL encoding when calling @javax.ws.rs.PathParam without any @Produces MediaType. This flaw allows an attacker to launch a reflected XSS attack. The highest threat from this vulnerability is to data confidentiality and integrity.

CVSS Details

CVSS 3.1 Base Score: 6.1
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Red Hat Jboss Eap	—	—	Sep 19, 2024	Mar 25, 2021
Redhat_linux	—	No solution exists	Jul 9, 2025	Jun 10, 2021
Ubuntu	—	No solution exists	Jun 26, 2025	Jun 10, 2021

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CVSS Details

Covered by Rapid7

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