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CVE-2025-12674— KiotViet Sync <= 1.8.5 - Unauthenticated Arbitrary File Upload

Quick assessment

Affected
mykiot KiotViet Sync
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin KiotViet Sync 1.8.5及之前版本存在代码问题漏洞，该漏洞源于create_media函数缺少文件类型验证，可能导致任意文件上传和远程代码执行。

CVSS 9.8 · Critical EPSS 0.78% · P53
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I. Basic Information for CVE-2025-12674

Vulnerability Information
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Vulnerability Title
KiotViet Sync <= 1.8.5 - Unauthenticated Arbitrary File Upload
Source: CVE Program / CVE List V5
Vulnerability Description
The KiotViet Sync plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the create_media() function in all versions up to, and including, 1.8.5. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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
WordPress plugin KiotViet Sync 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin KiotViet Sync 1.8.5及之前版本存在代码问题漏洞，该漏洞源于create_media函数缺少文件类型验证，可能导致任意文件上传和远程代码执行。
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)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
mykiot KiotViet Sync * ~ 1.8.5 -

II. Public POCs for CVE-2025-12674

# POC Description Source Link Shenlong Link
1 KiotViet Sync <= 1.8.5 - Unauthenticated Arbitrary File Upload https://github.com/Nxploited/CVE-2025-12674 POC Details
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III. Intelligence Information for CVE-2025-12674

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Same Patch Batch · mykiot · 2025-11-05 · 4 CVEs total

CVE-2025-12676 5.3 MEDIUM KiotViet Sync <= 1.8.5 - Use of Hard-coded Password to Authorization Bypass
CVE-2025-12677 5.3 MEDIUM KiotViet Sync <= 1.8.5 - Unauthenticated Webhook Key Exposure
CVE-2025-12675 4.3 MEDIUM KiotViet Sync <= 1.8.5 - Missing Authorization to Authenticated (Subscriber+) Settings Upd

IV. Related Vulnerabilities

Same product: KiotViet Sync
Same vendor: mykiot
Same weakness: CWE-434

V. Comments for CVE-2025-12674

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