CVSS 3.1
9.6 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:HCVE-2021-20195
Critical (9.6) in redhat keycloak. EPSS 1.2% chance of exploitation in the next 30 days. Fixed in org.keycloak:keycloak-core 13.0.0.
A flaw was found in keycloak in versions before 13.0.0. A Self Stored XSS attack vector escalating to a complete account takeover is possible due to user-supplied data fields not being properly encoded and Javascript code being used to process the data. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Severity
- EPSS
- 1.2% chance of exploitation in the next 30 days; higher than 69% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-116, CWE-20
- Published
- Modified
- Record from
- the NVD, synced
Affected
- redhat:keycloak
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-q6w2-89hq-hq27 | Maven | org.keycloak:keycloak-core | <13.0.0 | 13.0.0 |