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CVE-2026-8758— Metasoft 美特软件 MetaCRM upload3.jsp unrestricted upload

Quick assessment

Affected
Metasoft 美特软件 MetaCRM
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Metasoft MetaCRM是中国美特软件（Metasoft）公司的一款客户关系管理系统软件。 Metasoft MetaCRM 6.4.0 Beta06及之前版本存在访问控制错误漏洞，该漏洞源于upload3.jsp文件的未知函数对参数File处理不当，导致无限制上传。攻击者可能远程利用此漏洞。

CVSS 7.3 · High EPSS 0.47% · P39

Possible ATT&CK Techniques 1 AI

T1505.003 · Web Shell

Affected Version Matrix 1

VendorProduct Version RangeStatus
Metasoft 美特软件 MetaCRM 6.4.0 Beta06 affected
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I. Basic Information for CVE-2026-8758

Vulnerability Information
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Vulnerability Title
Metasoft 美特软件 MetaCRM upload3.jsp unrestricted upload
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was determined in Metasoft 美特软件 MetaCRM up to 6.4.0 Beta06. This impacts an unknown function of the file /common/jsp/upload3.jsp. Executing a manipulation of the argument File can lead to unrestricted upload. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
危险类型文件的不加限制上传
Source: CVE Program / CVE List V5
Vulnerability Title
Metasoft MetaCRM 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Metasoft MetaCRM是中国美特软件（Metasoft）公司的一款客户关系管理系统软件。 Metasoft MetaCRM 6.4.0 Beta06及之前版本存在访问控制错误漏洞，该漏洞源于upload3.jsp文件的未知函数对参数File处理不当，导致无限制上传。攻击者可能远程利用此漏洞。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Metasoft 美特软件 MetaCRM 6.4.0 Beta06 cpe:2.3:a:metasoft_:metacrm:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-8758

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III. Intelligence Information for CVE-2026-8758

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Proof of Concept for CVE-2026-8758 (1)

IV. Related Vulnerabilities

Same product: MetaCRM
Same vendor: Metasoft 美特软件
Same weakness: CWE-434

V. Comments for CVE-2026-8758

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