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CVE-2026-40548— Unrestricted Upload of File with Dangerous Type in SOPlanning

Quick assessment

Affected
SOPlanning SOPlanning
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.

SOPlanning是SOPlanning公司的一套在线项目管理软件。 SOPlanning 1.55及之前版本存在代码问题漏洞，该漏洞源于未验证上传文件扩展名，可能导致经过身份验证的攻击者上传包含合法user.csv文件和恶意文件的ZIP存档，恶意文件可被放置在Web可访问位置并通过浏览器执行。

AI Predicted 8.1 Difficulty: Easy EPSS 0.43% · P35

Affected Version Matrix 1

VendorProduct Version RangeStatus
SOPlanning SOPlanning ≤ 1.55 affected
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I. Basic Information for CVE-2026-40548

Vulnerability Information
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Vulnerability Title
Unrestricted Upload of File with Dangerous Type in SOPlanning
Source: CVE Program / CVE List V5
Vulnerability Description
SOPlanning does not verify uploaded file extension. An authenticated attacker with access to the backup functionality can upload a crafted ZIP archive containing a legitimate user.csv file alongside a malicious file, which is extracted on the server. When combined with CVE-2026-40547 (Path Traversal), the malicious file (e.g., a PHP script) can be placed in a web-accessible location and executed via the browser. This issue affects SOPlanning version 1.55 and below.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:H/SI:H/SA: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
SOPlanning 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SOPlanning是SOPlanning公司的一套在线项目管理软件。 SOPlanning 1.55及之前版本存在代码问题漏洞，该漏洞源于未验证上传文件扩展名，可能导致经过身份验证的攻击者上传包含合法user.csv文件和恶意文件的ZIP存档，恶意文件可被放置在Web可访问位置并通过浏览器执行。
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)

Affected Products

Vendor Product Affected Versions CPE Subscribe
SOPlanning SOPlanning 0 ~ 1.55 -

II. Public POCs for CVE-2026-40548

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III. Intelligence Information for CVE-2026-40548

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Security Blog Posts for CVE-2026-40548 (1)

Same Patch Batch · SOPlanning · 2026-06-01 · 7 CVEs total

CVE-2026-40545 Reflected XSS in SOPlanning
CVE-2026-40546 Multiple SQL Injections in SOPlanning
CVE-2026-40543 Missing Authorization in SOPlanning
CVE-2026-40549 Cross-Site Request Forgery in SOPlanning
CVE-2026-40544 Stored XSS in SOPlanning
CVE-2026-40547 Path Traversal in SOPlanning

IV. Related Vulnerabilities

Same product: SOPlanning
Same vendor: SOPlanning
Same weakness: CWE-434

V. Comments for CVE-2026-40548

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