CVE-2023-5637 ArslanSoft CVE debrief

Who should care

Administrators and developers responsible for Arslansoft Education Portal deployments, especially any environment exposing file-upload features or handling user-supplied files before v1.1.

Technical summary

The NVD entry describes an unrestricted upload of a dangerous file type in Arslansoft Education Portal before v1.1. The recorded CVSS v3.1 vector is AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N, indicating an unauthenticated network attack surface with high confidentiality impact. The supplied advisory data also maps the weakness to CWE-434 and lists third-party USOM references for the issue.

Defensive priority

High. The vulnerability is network reachable, requires no privileges or user interaction, and is scored 7.5 with high confidentiality impact.

Recommended defensive actions

• Upgrade Arslansoft Education Portal to v1.1 or later, which is outside the affected version range in the NVD record.
• Review any file-upload endpoints and enforce strict server-side allowlists for permitted file types and content.
• Validate uploaded files by content and metadata, not only by extension or client-supplied MIME type.
• Restrict execution or direct serving of uploaded files wherever possible.
• Check logs and stored uploads for unexpected file types or exposures of sensitive strings, and rotate any secrets that may have been embedded in accessible binaries or configuration artifacts.

Evidence notes

The CVE was published on 2023-12-01 and later modified on 2026-05-20 in the supplied NVD source item. The NVD CPE criteria mark Arslansoft Education Portal versions before 1.1 as vulnerable. The supplied references include the official CVE record, the NVD detail page, and USOM third-party advisory links.

Official resources