HOMEVULNERABILITIESCVE-2026-6561
MEDIUM

CVE-2026-6561

CWE-284Published: April 19, 2026· Updated: Apr 22, 2026

4.7
CVSS v3.1
EPSS:0.01%probability of exploitation in 30 daysPercentile:1.9th

Official 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.

NVD Source

Technical Analysis

CVE-2026-6561 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.High
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityLow
AvailabilityLow
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L

Affected Vendors & Products

Mentioned vendors (from description):
PHP
CPE data not yet available in NVD for this CVE.

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

All References (4)

→
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

Quick Facts

CVE IDCVE-2026-6561
CVSS Score4.7 / 10
SeverityMEDIUM
WeaknessCWE-284
CISA KEVNo
EPSS (30d)0.01%
PublishedApr 19, 2026

Related CVEs (CWE-284)

CVE-2026-32737
10.0
CVE-2026-30966
10.0
CVE-2026-35307
10.0
CVE-2026-35308
10.0
CVE-2026-46695
10.0
CVE-2026-35435
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-6561 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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