Vulnerability · Published Feb 25, 2026 · Assigned by VulDB
CVE-2026-3187feiyuchuixue sz-boot-parent API Endpoint upload unrestricted upload
Medium 6.3
In plain English
A medium-severity unrestricted file upload in sz-boot-parent from feiyuchuixue. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 30% of all known vulnerabilities).
Official 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."
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| feiyuchuixue | sz-boot-parent | 1.3.2-beta |
Weakness: CWE-434, CWE-284 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
References
- VDB-347745 | feiyuchuixue sz-boot-parent API Endpoint upload unrestricted upload vdb-entry
- VDB-347745 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
- Submit #754038 | feiyuchuixue https://github.com/feiyuchuixue/sz-boot-parent sz-boot-parent <= v1.3.2-beta Arbitrary File Upload third-party-advisory
- https://github.com/yuccun/CVE/blob/main/sz-boot-parent-Arbitrary_File_Upload.md exploit
- https://github.com/feiyuchuixue/sz-boot-parent/commit/aefaabfd7527188bfba3c8c9eee17c316d094802 patch
- https://github.com/feiyuchuixue/sz-boot-parent/releases/tag/v1.3.3-beta patch
- https://github.com/feiyuchuixue/sz-boot-parent/ product