Prototype Pollution in Elastic Kibana
CVE-2025-25015
Prototype pollution in Kibana leads to arbitrary code execution via a crafted file upload and specifically crafted HTTP requests. In Kibana versions >= 8.15.0 and < 8.17.1, this is exploitable by users with the Viewer role. In Kibana versions 8.17.1 and 8.17.2 , this is only exploitable by users that have roles that contain all the following privileges: fleet-all, integrations-all, actions:execute-advanced-connectors
Vulnerability class: Prototype Pollution
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.013 (69.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 69.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: +0.000
Affected products
- Elastic Kibana — versions 8.15.0, 8.17.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- discuss.elastic.co/t/kibana-8-17-3-8-16-6-security-update-esa-2025-06/375441 (Mitigation, Vendor Advisory)
Frequently asked questions
- What is CVE-2025-25015?
- CVE-2025-25015 is a critical-severity vulnerability in Elastic Kibana, classified under Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution). CVSS score: 9.9/10. Published 2025-03-05.
- How severe is CVE-2025-25015?
- Critical severity. CVSS v3 base score is 9.9 out of 10.
- Is CVE-2025-25015 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.