# CVE-2021-44266: Cross-site scripting in n/a

> Cross-site scripting vulnerability in Open eClass allows attackers to inject malicious scripts via the auth parameter, potentially leading to session hijacking.

- **Severity:** Medium 6.1 (`CVSS:3.1/AV:N/AC:L/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:** 11 Jun 2022
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-6m7g-w73h-3h6r

## What is CVE-2021-44266?

CVE-2021-44266 is a medium-severity cross-site scripting vulnerability in n/a, published on 11 Jun 2022. 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

GUnet Open eClass (aka openeclass) before 3.12.2 allows XSS via the modules/auth/formuser.php auth parameter.

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

## Which versions are affected by CVE-2021-44266?

It affects 1 product.


Products: Gunet Open Eclass Platform.

## How do I fix CVE-2021-44266?

No fix has been published for CVE-2021-44266 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-44266 being exploited?

There is no known exploitation of CVE-2021-44266 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [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-2021-44266 and fix it if it is affected.

What it is: CVE-2021-44266 is a medium-severity cross-site scripting vulnerability in n/a, published on 11 Jun 2022. 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-2021-44266 in the wild and no public exploit code.

Affected product: n/a. 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-2021-44266/ (Markdown: https://insights.sbomify.com/CVE-2021-44266/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-44266
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-44266
- OSV: https://osv.dev/vulnerability/CVE-2021-44266

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-44266/
Summaries are generated and may contain mistakes; the official description above is the record.