XSS in Red Hat Single Sign-On
CVE-2022-2256
A Stored Cross-site scripting (XSS) vulnerability was found in keycloak as shipped in Red Hat Single Sign-On 7. This flaw allows a privileged attacker to execute malicious scripts in the admin console, abusing the default roles functionality.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.8 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.007 (50.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 50.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: +0.000
Affected products
- Red Hat Single Sign-On — versions 7.0
- Keycloak — versions keycloak as shipped in Red Hat Single Sign-On 7
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugzilla.redhat.com/show_bug.cgi (Issue Tracking, Vendor Advisory)
- github.com/keycloak/keycloak/security/advisories/GHSA-w9mf-83w3-fv49 (Third Party Advisory, Broken Link)
Frequently asked questions
- What is CVE-2022-2256?
- CVE-2022-2256 is a low-severity vulnerability in Red Hat Single Sign-On, classified under Cross-site Scripting. CVSS score: 3.8/10. Published 2022-09-01.
- How severe is CVE-2022-2256?
- Low severity. CVSS v3 base score is 3.8 out of 10.
- Is CVE-2022-2256 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.