CVE-2025-25016Network attack vector

Software integrity compromise via unrestricted file upload

Published May 1, 2025 · Updated May 6, 2025

Unrestricted file upload in Elastic Kibana allows remote authenticated users to compromise software integrity with a crafted file. Elastic attributes the flaw to insufficient server-side validation but has not published the affected upload handler or validation bypass. Low-privilege network access is required; the documented impact is limited to unauthorized software modification, with no confidentiality or availability impact.

CVSS severity4.3
Medium
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unrestricted file upload in Elastic Kibana allows remote authenticated users to compromise software integrity with a crafted file. Elastic attributes the flaw to insufficient server-side validation but has not published the affected upload handler or validation bypass. Low-privilege network access is required; the documented impact is limited to unauthorized software modification, with no confidentiality or availability impact.

The record

CVE
CVE-2025-25016
Published
May 1, 2025
Updated
May 6, 2025
Vendor
Elastic
Product
Kibana
Classifications
CWE-434, CAPEC-184, T1105
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 1, 2025CVE publishedPublication date reported by the CVE source.
  2. May 6, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=7.17.0 <7.17.18
  2. Affected versionversion=8.0.0 <8.13.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Elastic · Kibanaversion=7.17.0 <7.17.18; version=8.0.0 <8.13.0

Published CVSS scores

4.3ElasticCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
CAPEC-184Software Integrity Attack
T1105Ingress Tool Transfer

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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