CVE-2025-52465Network attack vector

Administrator file write via minimally validated path

Published Jun 18, 2026 · Updated Jun 18, 2026

Arbitrary file write in GeoServer before 2.26.4 and 2.27.0 through 2.27.2 allows remote authenticated users to write its master password. MasterPasswordInfoPage accepts an absolute java.io.File path with minimal validation and writes the plaintext password to a new file. Security-administrator access and the web interface are required; a writable Tomcat webapps path permits JSP-based code execution.

CVSS severity7.2
High
EPSS probability0.62%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Arbitrary file write in GeoServer before 2.26.4 and 2.27.0 through 2.27.2 allows remote authenticated users to write its master password. MasterPasswordInfoPage accepts an absolute java.io.File path with minimal validation and writes the plaintext password to a new file. Security-administrator access and the web interface are required; a writable Tomcat webapps path permits JSP-based code execution.

The record

CVE
CVE-2025-52465
Published
Jun 18, 2026
Updated
Jun 18, 2026
Vendor
GeoWebCache
Product
GeoServer Web Application
Classifications
CWE-73, T1505.003
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jun 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 18, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=< 2.26.4
  2. Affected versionversion=>= 2.27.0, < 2.27.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

GeoWebCache · GeoServer Web Applicationversion=< 2.26.4; version=>= 2.27.0, < 2.27.3
GeoWebCache · Security UI Core Moduleversion=< 2.26.4; version=>= 2.27.0, < 2.27.3

Published CVSS scores

7.2GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-73External Control of File Name or Path
T1505.003Web Shell

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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