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6.5
MEDIUM CVSS 2.0
CVE-2026-3187
feiyuchuixue sz-boot-parent API Endpoint upload unrestricted upload
Description

A vulnerability was identified in feiyuchuixue sz-boot-parent up to 1.3.2-beta. Affected by this issue is some unknown functionality of the file /api/admin/sys-file/upload of the component API Endpoint. Such manipulation leads to unrestricted upload. The attack may be launched remotely. The exploit is publicly available and might be used. Upgrading to version 1.3.3-beta can resolve this issue. The name of the patch is aefaabfd7527188bfba3c8c9eee17c316d094802. Upgrading the affected component is recommended. The project was informed beforehand and acted very professional: "We have introduced a whitelist restriction on the /api/admin/sys-file/upload endpoint via the oss.allowedExts and oss.allowedMimeTypes configuration options, allowing the specification of permitted file extensions and MIME types for uploads."

INFO

Published Date :

Feb. 25, 2026, 3:20 p.m.

Last Modified :

Feb. 25, 2026, 3:22 p.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Affected Products

The following products are affected by CVE-2026-3187 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

: Total Affected Vendor : 0 | Products : 0
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 MEDIUM [email protected]
CVSS 3.1 MEDIUM [email protected]
CVSS 4.0 MEDIUM [email protected]
Solution
Unrestricted file upload vulnerability resolved by upgrading and configuring upload restrictions.
  • Upgrade feiyuchuixue sz-boot-parent to version 1.3.3-beta.
  • Configure oss.allowedExts and oss.allowedMimeTypes.
  • Restrict file uploads to permitted types.
  • Update the affected component.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-3187.

URL Resource
https://github.com/feiyuchuixue/sz-boot-parent/
https://github.com/feiyuchuixue/sz-boot-parent/commit/aefaabfd7527188bfba3c8c9eee17c316d094802
https://github.com/feiyuchuixue/sz-boot-parent/releases/tag/v1.3.3-beta
https://github.com/yuccun/CVE/blob/main/sz-boot-parent-Arbitrary_File_Upload.md
https://vuldb.com/?ctiid.347745
https://vuldb.com/?id.347745
https://vuldb.com/?submit.754038
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-3187 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-3187 weaknesses.

CAPEC-19: Embedding Scripts within Scripts Embedding Scripts within Scripts CAPEC-441: Malicious Logic Insertion Malicious Logic Insertion CAPEC-478: Modification of Windows Service Configuration Modification of Windows Service Configuration CAPEC-479: Malicious Root Certificate Malicious Root Certificate CAPEC-502: Intent Spoof Intent Spoof CAPEC-503: WebView Exposure WebView Exposure CAPEC-536: Data Injected During Configuration Data Injected During Configuration CAPEC-546: Incomplete Data Deletion in a Multi-Tenant Environment Incomplete Data Deletion in a Multi-Tenant Environment CAPEC-550: Install New Service Install New Service CAPEC-551: Modify Existing Service Modify Existing Service CAPEC-552: Install Rootkit Install Rootkit CAPEC-556: Replace File Extension Handlers Replace File Extension Handlers CAPEC-558: Replace Trusted Executable Replace Trusted Executable CAPEC-562: Modify Shared File Modify Shared File CAPEC-563: Add Malicious File to Shared Webroot Add Malicious File to Shared Webroot CAPEC-564: Run Software at Logon Run Software at Logon CAPEC-578: Disable Security Software Disable Security Software CAPEC-1: Accessing Functionality Not Properly Constrained by ACLs Accessing Functionality Not Properly Constrained by ACLs

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-3187 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2026-3187 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Feb. 25, 2026

    Action Type Old Value New Value
    Added Description A vulnerability was identified in feiyuchuixue sz-boot-parent up to 1.3.2-beta. Affected by this issue is some unknown functionality of the file /api/admin/sys-file/upload of the component API Endpoint. Such manipulation leads to unrestricted upload. The attack may be launched remotely. The exploit is publicly available and might be used. Upgrading to version 1.3.3-beta can resolve this issue. The name of the patch is aefaabfd7527188bfba3c8c9eee17c316d094802. Upgrading the affected component is recommended. The project was informed beforehand and acted very professional: "We have introduced a whitelist restriction on the /api/admin/sys-file/upload endpoint via the oss.allowedExts and oss.allowedMimeTypes configuration options, allowing the specification of permitted file extensions and MIME types for uploads."
    Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
    Added CVSS V2 (AV:N/AC:L/Au:S/C:P/I:P/A:P)
    Added CWE CWE-284
    Added CWE CWE-434
    Added Reference https://github.com/feiyuchuixue/sz-boot-parent/
    Added Reference https://github.com/feiyuchuixue/sz-boot-parent/commit/aefaabfd7527188bfba3c8c9eee17c316d094802
    Added Reference https://github.com/feiyuchuixue/sz-boot-parent/releases/tag/v1.3.3-beta
    Added Reference https://github.com/yuccun/CVE/blob/main/sz-boot-parent-Arbitrary_File_Upload.md
    Added Reference https://vuldb.com/?ctiid.347745
    Added Reference https://vuldb.com/?id.347745
    Added Reference https://vuldb.com/?submit.754038
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 5.3
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability
Base CVSS Score: 6.3
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 6.5
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact