Path Traversal Vulnerability in Moodle LMS Jmol Plugin by Moodle
CVE-2025-34031

8.7HIGH

Key Information:

Vendor

Moodle
Status
Jmol Plugin
Vendor
CVE Published:
24 June 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-34031?

A path traversal vulnerability has been identified in the Jmol plugin for Moodle LMS, allowing attackers to manipulate the query parameter in jsmol.php. This flaw enables the unauthorized reading of arbitrary files from the server's filesystem through inadequate input validation in the file_get_contents() function. As a result, attackers can potentially access sensitive information such as database credentials without requiring authentication, posing a significant risk to the integrity and confidentiality of the server's data.

Affected Version(s)

Jmol Plugin 0 <= 6.1

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-2025-34031 - Proof of Concept

CVE-2025-34031 - Proof of Concept

References

https://www.dionach.com/moodle-jmol-plugin-multiple-vulne...
exploittechnical-description
https://www.exploit-db.com/exploits/46881
third-party-advisoryexploit
https://vulncheck.com/advisories/moodle-lms-jmol-plugin-p...
third-party-advisory

EPSS Score

5% chance of being exploited in the next 30 days.

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
None
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

Dionach by Nomios
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