CVE-2021-20293 is a reflected Cross-Site Scripting (XSS) vulnerability in RESTEasy versions up to 4.6.0.Final, affecting products like NetApp OnCommand Insight and Red Hat RESTEasy. The flaw arises from improper URL encoding when handling @javax.ws.rs.PathParam without a @Produces MediaType, allowing an unauthenticated attacker to inject malicious scripts via a network-based attack requiring user interaction. This medium-severity vulnerability (CVSS 6.1) primarily threatens data confidentiality and integrity. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage, suggesting a low current threat landscape.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 4.6.0CPE matchmatch criteria | cpe:2.3:a:redhat:resteasy:*:*:*:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:a:netapp:oncommand_insight:-:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.