EyouCMS up to 1.7.1/5.0 Member Avatar Diyajax.php check_userinfo viewfile unrestricted upload

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in EyouCMS up to 1.7.1/5.0. The affected element is the function check_userinfo of the file Diyajax.php of the component Member Avatar Handler. The manipulation of the argument viewfile leads to unrestricted upload. This vulnerability is traded as CVE-2026-1107. It is possible to initiate the attack remotely. Furthermore, there is an exploit available. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability was found in EyouCMS up to 1.7.1/5.0 and classified as critical. This issue affects the function check_userinfo of the file Diyajax.php of the component Member Avatar Handler. The manipulation of the argument viewfile with an unknown input leads to a unrestricted upload vulnerability. Using CWE to declare the problem leads to CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. Impacted is confidentiality, integrity, and availability.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-1107. The exploitation is known to be easy. The attack may be initiated remotely. Technical details as well as a public exploit are known. The attack technique deployed by this issue is T1608.002 according to MITRE ATT&CK.

The exploit is available at github.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way. By approaching the search of inurl:Diyajax.php it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at CNNVD (CNNVD-202601-2971) and EUVD (EUVD-2026-3190). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔒

CNA Base Score: 6.3
CNA Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Unrestricted upload
CWE: CWE-434 / CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
Google Hack: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

01/17/2026 Advisory disclosed
01/17/2026 +0 days VulDB entry created
02/27/2026 +41 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2026-1107 (🔒)
GCVE (CVE): GCVE-0-2026-1107
GCVE (VulDB): GCVE-100-341699
EUVD: 🔒
CNNVD: CNNVD-202601-2971 - EyouCMS 代码问题漏洞

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 01/17/2026 09:47
Updated: 02/27/2026 05:13
Changes: 01/17/2026 09:47 (57), 01/18/2026 02:24 (30), 01/19/2026 01:48 (1), 01/19/2026 17:48 (6), 02/27/2026 05:13 (11)
Complete: 🔍
Submitter: nobb
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #731540: Hainan Zanzan Network Technology Co. Eyoucms <=1.7.1 causing code execution due to file inclusion (by nobb)

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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