8.8

CVE-2022-2256: redhat single_sign-on Cross-site Scripting

CVSS: 8.8v3.1HighModified
AliasesGHSA-w9mf-83w3-fv49
Published 01-09-2022Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2022-2256 is a high (CVSS 8.8) Cross-site Scripting vulnerability in redhat single_sign-on. EPSS estimates a 0.68% chance of exploitation in the next 30 days, higher than 51.6% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (wordfence)
EPSS score
0.68%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2
RHSA-2022:6782RHSA-2022:6783

Timeline

  1. 01-09-2022
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.68%

Chance of exploitation in the next 30 days

Percentile

52%

Versus all other CVEs

30-day change

0.00 pp

From 0.68% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.68%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Org.keycloak1 product
  • keycloak-parent< 19.0.2
Redhat1 product
Wordpress1 product
  • visualizer≤ 3.7.9 (fixed in 3.7.10)

3 vendors · 3 products

References

6 links