CVE-2021-20293

Description

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.

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.28%
Vendor Advisory redhat.com
Affected: n/a RESTEasy
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1942819 issue tracking vendor advisory
https://security.netapp.com/advisory/ntap-20210727-0005/ third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-20293?
CVE-2021-20293 has been scored as a medium severity vulnerability.
How to fix CVE-2021-20293?
To fix CVE-2021-20293, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-20293 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-20293 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-20293?
CVE-2021-20293 affects n/a RESTEasy.
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