CVE-2021-20293

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.

Published: Jun 10, 2021
Updated: May 9, 2024
CVE: CVE-2021-20293
GHSA: GHSA-5h26-c766-g93v
Severity: Medium
Exploit:

CVSS v3:

Severity: Medium
Score: 6.1
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS v2:

Severity: Low
Score: 4.3
AV:N/AC:M/Au:N/C:N/I:P/A:N

CWEs:

CWE-79

OWASP TOP 10:

A7 - Cross-Site Scripting (XSS)

Affected Software
References

Software	From	Fixed in
redhat / resteasy	-	4.6.0.x
org.jboss.resteasy / resteasy-bom	-	4.6.0.final.x
org.jboss.resteasy / resteasy-core	-	4.6.0.final.x

https://bugzilla.redhat.com/show_bug.cgi?id=1942819
https://security.netapp.com/advisory/ntap-20210727-0005/

Vulnerability Database

CVE-2021-20293

Deep Security Visibility Without the Complexity