CVE-2026-6561Public exploitNetwork attack vector

Sensitive file disclosure via arbitrary logo copy

Published Apr 19, 2026 · Updated Apr 19, 2026

Improper access control in EyouCMS 1.7.0 through 1.7.1 allows remote authenticated users to disclose files via admin logo editing. The edit_adminlogo function in application/admin/controller/Index.php treats the filename parameter as a server-side source path and copies that file as the administrative logo. Administrative access is required, and disclosure is limited to files readable by the web application process.

CVSS severity4.7
Medium
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in EyouCMS 1.7.0 through 1.7.1 allows remote authenticated users to disclose files via admin logo editing. The edit_adminlogo function in application/admin/controller/Index.php treats the filename parameter as a server-side source path and copies that file as the administrative logo. Administrative access is required, and disclosure is limited to files readable by the web application process.

The record

CVE
CVE-2026-6561
Published
Apr 19, 2026
Updated
Apr 19, 2026
Vendor
Hainan Zanzan Network Technology Co., Ltd.
Product
EyouCMS
Classifications
CWE-434, CWE-284, T1005
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Apr 19, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 19, 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=1.7.0
  2. Affected versionversion=1.7.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Hainan Zanzan Network Technology Co., Ltd. · EyouCMSversion=1.7.0; version=1.7.1

Published CVSS scores

4.7VulDBCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
5.8VulDBAV:N/AC:L/Au:M/C:P/I:P/A:P
2.0VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

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 exploitPublished

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
CWE-284Improper Access Control
T1005Data from Local System

Public exploit references

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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