Which versions of Sz Boot Parent are affected by CVE-2026-3187?

Organizations using feiyuchuixue sz-boot-parent should be aware of moderate risk from CVE-2026-3187, a improper access control vulnerability rated CVSS 6.3.. A patch is available.

Is there a public PoC exploit available for CVE-2026-3187?

Yes, a public proof-of-concept exploit is available for CVE-2026-3187. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2026-3187?

Within 30 days: Identify affected systems running feiyuchuixue sz-boot-parent and apply vendor patches as part of regular patch cycle. Vendor patch is available.

Sz Boot Parent CVE-2026-3187

Q: What is the CVSS score of CVE-2026-3187?

CVE-2026-3187 has a CVSS 4.0 base score of 2.1 (Low). CVSS vector: CVSS:4.0/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. EPSS exploitation probability: 0.1%.

LOW

Improper Access Control (CWE-284)

2026-02-25 cna@vuldb.com

File Upload Authentication Bypass Sz Boot Parent

2.1

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

2.1 LOW

CVSS:4.0/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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Lifecycle Timeline

Severity Changed

Apr 29, 2026 - 01:11 NVD

MEDIUM LOW

CVSS changed

Apr 29, 2026 - 01:11 NVD

6.3 (MEDIUM) 2.1 (LOW)

Analysis Generated

Mar 12, 2026 - 21:55 vuln.today

PoC Detected

Feb 26, 2026 - 15:11 vuln.today

Public exploit code

Patch released

Feb 26, 2026 - 15:11 nvd

Patch available

CVE Published

Feb 25, 2026 - 15:20 nvd

MEDIUM 6.3

DescriptionCVE.org

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."

AnalysisAI

Unrestricted file uploads in Sz Boot Parent versions up to 1.3.2-beta allow authenticated remote attackers to upload malicious files via the /api/admin/sys-file/upload API endpoint. Public exploit code exists for this vulnerability, which has been patched in version 1.3.3-beta through the addition of file extension and MIME type whitelisting controls. Immediate upgrade to the patched version is strongly recommended.

Technical ContextAI

Classified as CWE-284 (Improper Access Control). Affects Sz-Boot-Parent. 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