CVE-2023-5636Network attack vector

Unauthenticated command injection via unrestricted file upload

Published Dec 1, 2023 · Updated May 20, 2026

Unrestricted file upload in ArslanSoft Education Portal before 1.1 allows remote attackers to execute commands through network requests. The upload mechanism accepts dangerous file types and permits command injection, but the CNA record does not disclose a specific endpoint, parameter, or unsafe operation. No authentication or user interaction is required; successful exploitation can execute attacker commands with the portal service privileges and affect confidentiality, integrity, and availability.

CVSS severity9.8
Critical
EPSS probability1.68%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unrestricted file upload in ArslanSoft Education Portal before 1.1 allows remote attackers to execute commands through network requests. The upload mechanism accepts dangerous file types and permits command injection, but the CNA record does not disclose a specific endpoint, parameter, or unsafe operation. No authentication or user interaction is required; successful exploitation can execute attacker commands with the portal service privileges and affect confidentiality, integrity, and availability.

The record

CVE
CVE-2023-5636
Published
Dec 1, 2023
Updated
May 20, 2026
Vendor
ArslanSoft
Product
Education Portal
Classifications
CWE-434, CAPEC-248, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 1, 2023CVE publishedPublication date reported by the CVE source.
  2. May 20, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <v1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ArslanSoft · Education Portalversion=0 <v1.1

Published CVSS scores

9.8TR-CERTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
CAPEC-248Command Injection
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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