CVE-2026-6561 Details
Description
A vulnerability was detected in EyouCMS up to 1.7.1. This issue affects the function edit_adminlogo of the file application/admin/controller/Index.php. Performing a manipulation of the argument filename results in unrestricted upload. The attack is possible to be carried out remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
A vulnerability allowing unrestricted file upload has been identified in EyouCMS versions through 1.7.1. The issue resides in the admin controller's 'edit_adminlogo' function, where the 'filename' parameter is not properly validated. This flaw enables authenticated administrators to copy arbitrary files from the server to a publicly accessible directory, potentially leading to the disclosure of sensitive information such as database credentials and configuration files.
It is recommended to restrict access to the 'edit_adminlogo' endpoint and block public access to the copied files via web server configuration.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Apr 19, 2026CISA-ADP
Assessed Apr 20, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/zzk6th/my-cve-notes/blob/main/EyouCMS%20Arbitrary%20File%20Copy%20Vulnerability%20in%20edit_adminlogo()%20Leading%20to%20Sensitive%20Information%20Disclosure.md | [email protected] | ExploitRemedyTechnical Analysis |
| https://vuldb.com/submit/788038 | [email protected] | Technical Description |
| https://vuldb.com/vuln/358198 | [email protected] | AdvisoryExploitPartial Content |
| https://vuldb.com/vuln/358198/cti | [email protected] | Content Wall |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-284 | Improper Access Control | [email protected] |
| CWE-434 | Unrestricted Upload of File with Dangerous Type | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| EyouCMS | <= 1.7.1 (semver) |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 29, 2026 | Data Remediation | [email protected] |
| Apr 19, 2026 | New CVE Received | [email protected] |