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CVE-2025-8775— Qiyuesuo Eelectronic Signature Platform Scheduled Task upload execute unrestricted upload

Quick assessment

Affected
Qiyuesuo Eelectronic Signature Platform
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.

Qiyuesuo Eelectronic Signature Platform是中国契约锁（Qiyuesuo）公司的一款电子签名与电子合同管理平台。 Qiyuesuo Eelectronic Signature Platform 4.34及之前版本存在代码问题漏洞，该漏洞源于文件/api/code/upload中参数File处理不当，可能导致无限制上传。

CVSS 6.3 · Medium EPSS 0.41% · P34

Possible ATT&CK Techniques 1 AI

T1505.003 · Web Shell
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I. Basic Information for CVE-2025-8775

Vulnerability Information
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Vulnerability Title
Qiyuesuo Eelectronic Signature Platform Scheduled Task upload execute unrestricted upload
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in Qiyuesuo Eelectronic Signature Platform up to 4.34 and classified as critical. Affected by this issue is the function execute of the file /api/code/upload of the component Scheduled Task Handler. The manipulation of the argument File leads to unrestricted upload. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. 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:L/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
Qiyuesuo Eelectronic Signature Platform 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Qiyuesuo Eelectronic Signature Platform是中国契约锁（Qiyuesuo）公司的一款电子签名与电子合同管理平台。 Qiyuesuo Eelectronic Signature Platform 4.34及之前版本存在代码问题漏洞，该漏洞源于文件/api/code/upload中参数File处理不当，可能导致无限制上传。
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
Qiyuesuo Eelectronic Signature Platform 4.0 -

II. Public POCs for CVE-2025-8775

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III. Intelligence Information for CVE-2025-8775

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Other References for CVE-2025-8775 (1)

IV. Related Vulnerabilities

Same weakness: CWE-434

V. Comments for CVE-2025-8775

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