CVE-2023-5636 | Malicious File Upload in ArslanSoft's Education Portal

Unrestricted Upload of File with Dangerous Type vulnerability in ArslanSoft Education Portal allows Command Injection. This issue affects Education Portal: before v1.1.

Published: 2023-12-01 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-5636 is rated High Risk (66.2/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 1.68%). EPSS rose +1.17% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-5636

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.51% 1.68% +1.17%
2 2025-11-21 1.63% 0.51% -1.12%
3 2025-11-18 — 1.63% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-5636

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]

Weakness enumeration for CVE-2023-5636

GitHub Security Advisory for CVE-2023-5636

GHSA-56m8-9r6v-cqp3 · Severity: critical — Unrestricted Upload of File with Dangerous Type vulnerability in ArslanSoft Education Portal...

Affected software / configurations for CVE-2023-5636

Vendor Product Version Raw CPE
arslansoft_education_portal_project arslansoft_education_portal < 1.1 cpe:2.3:a:arslansoft_education_portal_project:arslansoft_education_portal:*:*:*:*:*:*:*:*

References for CVE-2023-5636

cvelogic Threat Intelligence