# CVE-2026-24774: Open eClass Business Logic Flaw Allows Students to Mark Attendance in Expired Activities

> Authenticated students can improperly mark themselves present in expired attendance activities by accessing crafted URLs, compromising data integrity.

- **Severity:** Medium 4.3 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 3 Feb 2026
- **Updated:** 4 Feb 2026
- **Also known as:** GHSA-rv2x-4rc8-93jh

## What is CVE-2026-24774?

CVE-2026-24774 is a medium-severity vulnerability in gunet openeclass, published on 3 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The Open eClass platform (formerly known as GUnet eClass) is a complete course management system. Prior to version 4.2, a business logic vulnerability allows authenticated students to improperly mark themselves as present in attendance activities, including activities that have already expired, by directly accessing a crafted URL. This issue has been patched in version 4.2.

Weakness: CWE-841 (Improper Enforcement of Behavioral Workflow)

## Which versions are affected by CVE-2026-24774?

It affects 1 product.


Products: Gunet Open Eclass Platform.

## How do I fix CVE-2026-24774?

No fix has been published for CVE-2026-24774 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-24774 being exploited?

There is no known exploitation of CVE-2026-24774 in the wild and no public exploit code.

## Other vulnerabilities in gunet openeclass

- [CVE-2020-37113](https://insights.sbomify.com/CVE-2020-37113/): GUnet OpenEclass 1.7.3 E-learning platform - File Upload Extension Bypass (high 8.7)
- [CVE-2020-37116](https://insights.sbomify.com/CVE-2020-37116/): GUnet OpenEclass 1.7.3 E-learning platform - phpMyAdmin Remote Access (high 8.7)
- [CVE-2026-24665](https://insights.sbomify.com/CVE-2026-24665/): Open eClass is Vulnerable to Stored Cross-Site Scripting (XSS) via Student Assignment Upload (high 8.7)
- [CVE-2026-24669](https://insights.sbomify.com/CVE-2026-24669/): Open eClass Insecure Password Reset Token Reuse Enables Account Takeover (high 7.8)
- [CVE-2026-24773](https://insights.sbomify.com/CVE-2026-24773/): Open eClass Unauthenticated IDOR Allows Access to Arbitrary User Files (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-24774 and fix it if it is affected.

What it is: CVE-2026-24774 is a medium-severity vulnerability in gunet openeclass, published on 3 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-24774 in the wild and no public exploit code.

Affected product: gunet openeclass. 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-2026-24774/ (Markdown: https://insights.sbomify.com/CVE-2026-24774/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-24774
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-24774
- OSV: https://osv.dev/vulnerability/CVE-2026-24774

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-24774/
Summaries are generated and may contain mistakes; the official description above is the record.