# CVE-2026-24674: Open eClass is Vulnerable to Reflected Cross-Site Scripting (XSS) in Multiple Endpoints

> Remote attackers can execute arbitrary JavaScript in authenticated users' browsers via crafted URLs, potentially leading to account takeover.

- **Severity:** Medium 4.7 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 3 Feb 2026
- **Updated:** 4 Feb 2026
- **Also known as:** GHSA-gqvp-w22w-w99r

## What is CVE-2026-24674?

CVE-2026-24674 is a medium-severity cross-site scripting vulnerability in gunet openeclass, published on 3 Feb 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

The Open eClass platform (formerly known as GUnet eClass) is a complete course management system. Prior to version 4.2, a Reflected Cross-Site Scripting (XSS) vulnerability allows remote attackers to execute arbitrary JavaScript in the context of authenticated users by crafting malicious URLs and tricking victims into visiting them. This issue has been patched in version 4.2.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2026-24674?

It affects 1 product.


Products: Gunet Open Eclass Platform.

## How do I fix CVE-2026-24674?

No fix has been published for CVE-2026-24674 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-24674 being exploited?

There is no known exploitation of CVE-2026-24674 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-2026-24674 and fix it if it is affected.

What it is: CVE-2026-24674 is a medium-severity cross-site scripting vulnerability in gunet openeclass, published on 3 Feb 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-24674 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-2026-24674/ (Markdown: https://insights.sbomify.com/CVE-2026-24674/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-24674
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-24674
- OSV: https://osv.dev/vulnerability/CVE-2026-24674

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-24674/
Summaries are generated and may contain mistakes; the official description above is the record.