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CVE-2023-5812— flusity CMS upload.php handleFileUpload unrestricted upload

Quick assessment

Affected
flusity CMS
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.

flusity CMS是一个可以轻松更改或添加代码的用户交互界面解决方案。 Flusity CMS 存在安全漏洞，该漏洞源于 core/tools/upload.php 的 handleFileUpload函数中的参数 uploaded_file 会导致上传不受限制。

CVSS 4.7 · Medium EPSS 0.69% · P52

Possible ATT&CK Techniques 1 AI

T1505.003 · Web Shell
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I. Basic Information for CVE-2023-5812

Vulnerability Information
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Vulnerability Title
flusity CMS upload.php handleFileUpload unrestricted upload
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability has been found in flusity CMS and classified as critical. Affected by this vulnerability is the function handleFileUpload of the file core/tools/upload.php. The manipulation of the argument uploaded_file leads to unrestricted upload. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. This product does not use versioning. This is why information about affected and unaffected releases are unavailable. The associated identifier of this vulnerability is VDB-243643.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/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
flusity CMS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
flusity CMS是一个可以轻松更改或添加代码的用户交互界面解决方案。 Flusity CMS 存在安全漏洞，该漏洞源于 core/tools/upload.php 的 handleFileUpload函数中的参数 uploaded_file 会导致上传不受限制。
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
flusity CMS n/a -

II. Public POCs for CVE-2023-5812

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III. Intelligence Information for CVE-2023-5812

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Vendor Advisories for CVE-2023-5812 (2)

Same Patch Batch · flusity · 2023-10-27 · 3 CVEs total

CVE-2023-5810 2.4 LOW flusity CMS posts.php loadPostAddForm cross site scripting
CVE-2023-5811 2.4 LOW flusity CMS posts.php loadPostAddForm cross site scripting

IV. Related Vulnerabilities

Same product: CMS
Same vendor: flusity
Same weakness: CWE-434

V. Comments for CVE-2023-5812

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