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HEL Online Classroom - Security Vulnerability (CVE-2026-77010)

CVE-2026-77010

The HEL Online Classroom: AI-powered Online Classrooms WordPress plugin through 1.0.3 does not perform authorisation checks on its REST API routes and does not consistently enforce the per-class access code, allowing unauthenticated users to obtain a signed meeting join link for any classroom, including one protected by an access code, and to join it with moderator privileges.

CVE-2026-77010

MEDIUM CVSS 6.5 Published 2026-08-29 Updated 2026-08-31
AI Risk Elevated (70/100) Active Exploit: No strong signal Published Exploit: No public exploit references Priority: P3 Priority
Severity Band MEDIUM
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Affected Components 2
Reference Links 1
AI Risk Engine Elevated (70/100)
Exploitability High
Active Exploitation No strong signal
Published Exploit Status No public exploit references

Threat Timeline

  1. 2026-08-29 CVE published and first recorded in the threat feed.
  2. 2026-08-31 Record updated with latest vulnerability metadata.
  3. 2026-08-31 AI technical context refreshed for mitigation and impact guidance.
  4. Now Monitoring for follow-up changes, linked references, and new related CVEs.

AI Context

Machine-generated threat intelligence

AI Updated 5 days ago

AI enriched 5 days ago (2026-08-31 23:30 UTC)

Technical Summary

The HEL Online Classroom: AI-powered Online Classrooms WordPress plugin through 1.0.3 does not perform authorisation checks on its REST API routes and does not consistently enforce the per-class access code, allowing unauthenticated users to obtain a signed meeting join link for any classroom, including one protected by an access code, and to join it with moderator privileges.

Potential Impact

Severity is MEDIUM (CVSS 6.5). Depending on deployment context, affected components may be exposed to unauthorized actions or data integrity risk.

Exploitability Assessment

Exploitability is assessed as High based on remote code execution potential, low-bar exploit prerequisites.

Primary risk drivers: remote code execution potential, low-bar exploit prerequisites

Mitigation Recommendations

Validate affected product versions, prioritize patching, and monitor references for vendor remediation guidance. If immediate patching is not possible, apply compensating controls and limit exposure of vulnerable surfaces.

Detection & Monitoring

Track authentication anomalies, unexpected file writes, and suspicious plugin API activity around affected components.

Business Impact Lens

AI risk score 70/100 (Elevated, High) with priority P3 Priority. Prioritize remediation where affected components process customer data, admin sessions, or Internet-exposed workflows.

References

What to do about this

Patch promptly The consequence is significant even where an attacker needs a foothold first.

Fix it

Update HEL Online Classroom to the latest available version.

Where the vendor has not published a fix yet, disable the plugin until they do.

No Hack Halt control meaningfully contains this one — updating is the remedy. We would rather say so than sell you something that will not help.

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Not sure if you are affected?

Scan your site to see whether it runs HEL Online Classroom, and at which version.

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Am I affected by this vulnerability?

You are affected if your site runs HEL Online Classroom. No account is needed to exploit this, so a public site is reachable by anyone.

How do I fix it?

Update HEL Online Classroom to the latest available version. Where the vendor has not yet published a fix, remove or disable the plugin until they do.