Stored Cross-Site Scripting Vulnerability in Classroomio LMS by Classroomio
CVE-2025-65676

5.4MEDIUM

Key Information:

Vendor

Classroomio

Status
Classroomio LMS
Vendor
CVE Published:
26 November 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-65676?

A stored Cross-Site Scripting (XSS) vulnerability exists in Classroomio LMS version 0.1.13, which allows authenticated attackers to execute arbitrary JavaScript code. This exploit occurs through malicious SVG cover images, potentially compromising user data and allowing unauthorized actions within the application.

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2025-65676
Created by Rivek619

References

https://github.com/classroomio/classroomio
https://github.com/Rivek619/CVE-2025-65676

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability Reserved

.