# CVE-2023-5635: User Enumeration in ArslanSoft's Education Portal

> Attackers can enumerate user accounts via improper error messages in ArslanSoft Education Portal, exposing sensitive user data.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 1 Dec 2023
- **Updated:** 21 May 2026
- **Also known as:** GHSA-rh6q-6cxg-4782

## What is CVE-2023-5635?

CVE-2023-5635 is a high-severity vulnerability in ArslanSoft Education Portal, published on 1 Dec 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Improper Protection for Outbound Error Messages and Alert Signals vulnerability in ArslanSoft Education Portal allows Account Footprinting.

This issue affects Education Portal: before v1.1.

Weakness: CWE-1320 (Improper Protection for Outbound Error Messages and Alert Signals)

## Which versions are affected by CVE-2023-5635?

It affects 1 product.


Products: Arslansoft Education Portal Project Arslansoft Education Portal.

## How do I fix CVE-2023-5635?

No fix has been published for CVE-2023-5635 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-5635 being exploited?

There is no known exploitation of CVE-2023-5635 in the wild and no public exploit code.

## Other vulnerabilities in ArslanSoft Education Portal

- [CVE-2023-5634](https://insights.sbomify.com/CVE-2023-5634/): SQLi in ArslanSoft's Education Portal (critical 9.8)
- [CVE-2023-5636](https://insights.sbomify.com/CVE-2023-5636/): Malicious File Upload in ArslanSoft's Education Portal (critical 9.8)
- [CVE-2023-5637](https://insights.sbomify.com/CVE-2023-5637/): Plaintext Storage of a Password in ArslanSoft's Education Portal (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-5635 and fix it if it is affected.

What it is: CVE-2023-5635 is a high-severity vulnerability in ArslanSoft Education Portal, published on 1 Dec 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-5635 in the wild and no public exploit code.

Affected product: ArslanSoft Education Portal. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2023-5635/ (Markdown: https://insights.sbomify.com/CVE-2023-5635/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-5635
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-5635
- OSV: https://osv.dev/vulnerability/CVE-2023-5635

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-5635/
Summaries are generated and may contain mistakes; the official description above is the record.