Cross-site request forgery (CSRF) vulnerability in Elasticsearch Kibana before 4.1.3 and 4.2.x before 4.2.1 allows remote attackers to hijack the authentication of unspecified victims via unknown vectors.
Conclusion & alert: CVE-2015-8131 is rated Moderate Risk (46.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.88%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.16% | 0.88% | +0.72% |
| 2 | 2026-01-11 | 0.09% | 0.16% | +0.06% |
| 3 | 2023-03-07 | — | 0.09% | — |
Full EPSS history (4 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.8 | 2.0 | MEDIUM |
|
8.6 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2015-8131 |
| URL | Tags |
|---|---|
| http://www.securityfocus.com/archive/1/536935/100/0/threaded | |
| https://www.elastic.co/community/security/ | Vendor Advisory |