CVE-2026-6561: EyouCMS Index.php edit_adminlogo unrestricted upload

Severity: medium (CVSS 4.7 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-04-19 · updated 2026-06-17
Weakness: CWE-284

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.

Affected products

EyouCMS: 1.7.0, 1.7.1

References

https://github.com/zzk6th/my-cve-notes/blob/main/EyouCMS%20Arbitrary%20File%20Copy%20Vulnerability%20in%20edit_adminlogo()%20Leading%20to%20Sensitive%20Information%20Disclosure.md
https://vuldb.com/submit/788038
https://vuldb.com/vuln/358198
https://vuldb.com/vuln/358198/cti

Get alerted when CVE-2026-6561 or the next vulnerability affects your stack