#VU108739 Prototype pollution in Kibana - CVE-2025-25014

Vulnerability identifier: #VU108739

Vulnerability risk: Low

CVSSv4.0: 7.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2025-25014

CWE-ID: CWE-1321

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Kibana
Web applications / Other software

Vendor: Elastic Stack

Description

The vulnerability allows a remote user to execute arbitrary code.

The vulnerability exists due to improper input validation within the machine learning and reporting endpoints. A remote privileged user can send a specially crafted HTTP request to the application, perform prototype pollution and execute arbitrary code in the context of Kibana.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Kibana: 8.3.0, 8.3.1, 8.3.2, 8.3.3, 8.4.0, 8.4.1, 8.4.2, 8.4.3, 8.5.0, 8.5.1, 8.5.2, 8.5.3, 8.6.0, 8.6.1, 8.6.2, 8.7.0, 8.7.1, 8.8.0, 8.8.1, 8.8.2, 8.9.0, 8.9.1, 8.9.2, 8.10.0, 8.10.1, 8.10.2, 8.10.3, 8.10.4, 8.11.0, 8.11.1, 8.11.2, 8.11.3, 8.11.4, 8.12.0, 8.12.1, 8.12.2, 8.13.0, 8.13.1, 8.13.2, 8.13.3, 8.13.4, 8.14.0, 8.14.1, 8.14.2, 8.14.3, 8.15.0, 8.15.1, 8.15.2, 8.15.3, 8.15.4, 8.15.5, 8.16.0, 8.16.1, 8.16.2, 8.16.3, 8.16.4, 8.16.5, 8.16.6, 8.17.0, 8.17.1, 8.17.2, 8.17.3, 8.17.4, 8.17.5, 8.18.0, 9.0.0

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External links
https://discuss.elastic.co/t/kibana-8-17-6-8-18-1-or-9-0-1-security-update-esa-2025-07/377868

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.