Is there a public PoC exploit available for CVE-2025-8344?

Yes, a public proof-of-concept exploit is available for CVE-2025-8344. Prioritise patching immediately. EPSS: 0.1%.

Java CVE-2025-8344

Q: What is the CVSS score of CVE-2025-8344?

CVE-2025-8344 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)

2025-07-31 cna@vuldb.com

Java Authentication Bypass File Upload Shio

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

Analysis Generated

Apr 29, 2026 - 01:18 vuln.today

DescriptionCVE.org

A vulnerability classified as critical has been found in openviglet shio up to 0.3.8. Affected is the function shStaticFileUpload of the file shio-app/src/main/java/com/viglet/shio/api/staticfile/ShStaticFileAPI.java. The manipulation of the argument filename leads to unrestricted upload. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

AnalysisAI

Unrestricted file upload in OpenViglet Shio through version 0.3.8 allows authenticated remote attackers to upload arbitrary files via manipulation of the filename parameter in the ShStaticFileAPI.shStaticFileUpload function. The vulnerability requires valid authentication credentials but lacks proper input validation on uploaded filenames, enabling arbitrary file placement on the server. Publicly available exploit code exists, though EPSS score remains low at 0.11% (28th percentile), suggesting limited real-world exploitation despite public disclosure.

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CVE-2025-8344 vulnerability details – vuln.today

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