Reflected Cross-Site Scripting Vulnerability in Moodle LMS Jmol Plugin
CVE-2025-34032

5.1MEDIUM

Key Information:

Vendor

Moodle
Status
Jmol Plugin
Vendor
CVE Published:
24 June 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-34032?

A reflected cross-site scripting (XSS) vulnerability exists in the Moodle LMS Jmol plugin, allowing attackers to manipulate user input through the data parameter in jsmol.php. This security flaw arises from improper sanitization of user input before it is sent back in the HTTP response. An attacker can exploit this vulnerability by crafting a malicious link that executes arbitrary JavaScript in the victim's browser, potentially hijacking sessions or modifying content on the page.

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-2025-34032 - Proof of Concept

CVE-2025-34032 - 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-xss
third-party-advisory

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Dionach by Nomios
.
CVE-2025-34032 : Reflected Cross-Site Scripting Vulnerability in Moodle LMS Jmol Plugin