# CVE-2026-6708: Missing authorization in HEL Online Classroom: AI-powered Online Classrooms

> Unauthenticated attackers can delete any classroom record via a vulnerable REST API endpoint, causing permanent data loss.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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:** 12 May 2026
- **Updated:** 12 May 2026
- **Also known as:** GHSA-mxgq-qrj9-vj5p

## What is CVE-2026-6708?

CVE-2026-6708 is a medium-severity missing authorization vulnerability in higheredlab HEL Online Classroom: AI-powered Online Classrooms, published on 12 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The HEL Online Classroom: AI-powered Online Classrooms plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 1.0.3. This is due to a missing capability check on a REST API endpoint registered with a permission_callback of '__return_true', which bypasses all WordPress authentication and authorization checks. This makes it possible for unauthenticated attackers to delete any classroom record by supplying its ID in the request, resulting in permanent data loss.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2026-6708?


## How do I fix CVE-2026-6708?

No fix has been published for CVE-2026-6708 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-6708 being exploited?

There is no known exploitation of CVE-2026-6708 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-6708 and fix it if it is affected.

What it is: CVE-2026-6708 is a medium-severity missing authorization vulnerability in higheredlab HEL Online Classroom: AI-powered Online Classrooms, published on 12 May 2026. 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-2026-6708 in the wild and no public exploit code.

Affected product: higheredlab HEL Online Classroom: AI-powered Online Classrooms. 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-2026-6708/ (Markdown: https://insights.sbomify.com/CVE-2026-6708/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-6708
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-6708
- OSV: https://osv.dev/vulnerability/CVE-2026-6708

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-6708/
Summaries are generated and may contain mistakes; the official description above is the record.