CVE-2026-30368

MEDIUM

Lightspeed Classroom 5.1.2.1763770643 - Auth Bypass

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 2 public exploits for CVE-2026-30368. PoCs published by truekas, adminlove520.

AI-analyzed exploit summary This repository contains a functional PoC for CVE-2026-30368, exploiting a weak authentication flaw in Lightspeed Classroom management to control student devices. The exploit involves extracting a JWT token from a modified service worker and WASM module, then using it to send commands via Ably channels.

Description

A client-side authorization flaw in Lightspeed Classroom v5.1.2.1763770643 allows unauthenticated attackers to impersonate users by bypassing integrity checks and abusing client-generated authorization tokens, leading to unauthorized control and monitoring of student devices.

Exploits (2)

github WORKING POC 12 stars
by truekas · javascriptpoc
https://github.com/truekas/ls-poc

This repository contains a functional PoC for CVE-2026-30368, exploiting a weak authentication flaw in Lightspeed Classroom management to control student devices. The exploit involves extracting a JWT token from a modified service worker and WASM module, then using it to send commands via Ably channels.

Classification
Working Poc 95%
Attack Type
Auth Bypass
Complexity
Complex
Reliability
Reliable
Target: Lightspeed Classroom Management (version 5.1.2.1763770643)
Auth required
Prerequisites: Lightspeed extension files (worker.js, classroom.wasm, manifest.json) · Node.js environment · Valid school account credentials
devstral-2 · analyzed Apr 24, 2026 Full analysis →
github WORKING POC 4 stars
by adminlove520 · pythonpoc
https://github.com/adminlove520/CVE-Poc_All_in_One/tree/main/2026/CVE-2026-30368

This repository contains a functional proof-of-concept exploit for CVE-2026-30368, targeting a weak authentication flaw in Lightspeed Classroom management. The exploit involves extracting a JWT token from a service worker and using it to send commands to student devices via Ably channels.

Classification
Working Poc 95%
Attack Type
Auth Bypass
Complexity
Complex
Reliability
Reliable
Target: Lightspeed Classroom management (version 5.1.2.1763770643)
No auth needed
Prerequisites: worker.js · classroom.wasm · manifest.json files from the Lightspeed extension · Node.js environment · Ably API key
devstral-2 · analyzed May 15, 2026 Full analysis →

Scores

CVSS v3 5.4
EPSS 0.0002
EPSS Percentile 3.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-863
Status published
Products (1)
Lightspeed/Lightspeed Classroom 5.1.2.1763770643
Published Apr 24, 2026
Tracked Since Apr 24, 2026