Chamilo LMS File Upload Functionality Remote Code Execution
CVE-2023-4226

8.8HIGH

Key Information:

Vendor

Chamilo

Status
Chamilo
Vendor
CVE Published:
28 November 2023

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 23%

What is CVE-2023-4226?

A vulnerability exists within Chamilo LMS that allows authenticated users with a learner role to exploit an unrestricted file upload functionality. This flaw enables attackers to upload malicious PHP files, resulting in remote code execution. Users of Chamilo LMS versions up to and including v1.11.24 should take immediate action to patch this vulnerability to prevent unauthorized access and potential system breaches.

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Deploy the Patch

Affected Version(s)

Chamilo 0 <= 1.11.24

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-2023-4226
Created by SkyW4r33x

References

https://support.chamilo.org/projects/chamilo-18/wiki/secu...
vendor-advisory
https://starlabs.sg/advisories/23/23-4226
third-party-advisory
https://github.com/chamilo/chamilo-lms/commit/6f32625a012...
patch

EPSS Score

23% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Ngo Wei Lin (@Creastery) of STAR Labs SG Pte. Ltd. (@starlabs_sg)
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