CVE-2021-20323
CVE-2021-20323 is a medium-severity vulnerability in Redhat Keycloak with a CVSS 3.x base score of 6.1. Its EPSS exploit-prediction score of 37% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-79.
Key facts
- Severity: Medium (CVSS 3.x base score 6.1)
- CVSS v2: 4.3
- EPSS exploit prediction: 37% (98th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-79
- Affected product: Redhat Keycloak
- Published:
- Last modified:
Description
A POST based reflected Cross Site Scripting vulnerability on has been identified in Keycloak.
Frequently asked questions
- What is CVE-2021-20323?
- A POST based reflected Cross Site Scripting vulnerability on has been identified in Keycloak.
- How severe is CVE-2021-20323?
- CVE-2021-20323 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2021-20323 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 37% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-20323?
- CVE-2021-20323 affects Redhat Keycloak. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-20323?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-20323 published?
- CVE-2021-20323 was published on 2022-03-25 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:*
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