CVE-2026-77007Network attack vector

Unauthenticated signing-secret disclosure via unprotected REST route

Published Aug 29, 2026 · Updated Aug 29, 2026

Information exposure in HigherEdLab HEL Online Classroom 1.0.3 and earlier allows remote attackers to read stored settings through a REST API route. The route returns the plugin's saved configuration without authenticating the requester or checking authorization, exposing the shared secret used to sign BigBlueButton API requests. Any network client that can reach the WordPress REST API can retrieve the secret; the published record reports disclosure only, not settings modification or service interruption.

CVSS severity7.5
High
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information exposure in HigherEdLab HEL Online Classroom 1.0.3 and earlier allows remote attackers to read stored settings through a REST API route. The route returns the plugin's saved configuration without authenticating the requester or checking authorization, exposing the shared secret used to sign BigBlueButton API requests. Any network client that can reach the WordPress REST API can retrieve the secret; the published record reports disclosure only, not settings modification or service interruption.

The record

CVE
CVE-2026-77007
Published
Aug 29, 2026
Updated
Aug 29, 2026
Vendor
HigherEdLab
Product
HEL Online Classroom: AI-powered Online Classrooms
Classifications
CWE-200, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 29, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 29, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=1.0.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

HigherEdLab · HEL Online Classroom: AI-powered Online Classroomsversion=0 <=1.0.3

Published CVSS scores

7.5CISA ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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