CVE-2021-20195 describes a critical self-stored Cross-Site Scripting (XSS) vulnerability in Red Hat Keycloak versions prior to 13.0.0. This flaw allows an attacker to achieve complete account takeover due to improper encoding of user-supplied data processed by JavaScript. With a CVSS score of 9.6 (CRITICAL), the vulnerability poses a high threat to data confidentiality, integrity, and system availability, requiring user interaction but no prior authentication. Despite its severity, there is currently no public exploit code available, nor is it listed in CISA's KEV catalog, and it has received no significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 12.0.3CPE matchmatch criteria | cpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.8 Bluesky, 0.5 Mastodon, and 1.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.