Arbitrary File Upload Vulnerability in Chamilo LMS by Chamilo
CVE-2018-25158

8.7HIGH

Key Information:

Vendor

Chamilo

Status
Chamillo Lms
Vendor
CVE Published:
20 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2018-25158?

Chamilo LMS version 1.11.8 has a vulnerability that allows authenticated users to upload files through the elfinder filemanager module. By taking advantage of this flaw, attackers can upload files disguised as images, rename them to PHP extensions, and execute arbitrary code by accessing these files directly. This poses a significant risk as it allows the potential for unauthorized system access and exploitation.

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Affected Version(s)

Chamillo LMS Chamilo 1.11.8 or lower to 1.8

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-2018-25158 - Proof of Concept

References

https://www.exploit-db.com/exploits/47423
exploit
https://github.com/chamilo/chamilo-lms
product
https://www.vulncheck.com/advisories/chamilo-lms-arbitrar...
third-party-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Sohel Yousef
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