CVE-2025-34032

MEDIUM EXPLOITED NUCLEI

Moodle Jmol Plugin < 6.1 - Reflected Cross-Site Scripting via jsmol.php Data Parameter

Title source: llm
STIX 2.1

Exploitation Summary

CVE-2025-34032 has been observed exploited in the wild (reported by VulnCheck KEV). EIP tracks 1 public exploit from researchers including Dionach Ltd. A Nuclei detection template is also available.

AI-analyzed exploit summary The exploit demonstrates directory traversal, SSRF, and XSS vulnerabilities in the Moodle filter_jmol plugin due to unvalidated user input in the PHP proxy script. It also includes a proof of concept for malware distribution via base64-encoded payloads.

Description

A reflected cross-site scripting (XSS) vulnerability exists in the Moodle LMS Jmol plugin version 6.1 and prior via the data parameter in jsmol.php. The application fails to properly sanitize user input before embedding it into the HTTP response, allowing an attacker to execute arbitrary JavaScript in the victim's browser by crafting a malicious link. This can be used to hijack user sessions or manipulate page content. Exploitation evidence was observed by the Shadowserver Foundation on 2025-02-02 UTC.

Exploits (1)

exploitdb WORKING POC
by Dionach Ltd · textwebappsphp
https://www.exploit-db.com/exploits/46881

The exploit demonstrates directory traversal, SSRF, and XSS vulnerabilities in the Moodle filter_jmol plugin due to unvalidated user input in the PHP proxy script. It also includes a proof of concept for malware distribution via base64-encoded payloads.

Classification
Working Poc 90%
Attack Type
Info Leak | Xss | Ssrf
Complexity
Trivial
Reliability
Reliable
Target: Moodle filter_jmol plugin <=6.1
No auth needed
Prerequisites: Moodle instance with filter_jmol plugin installed · Network access to the Moodle server
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Nuclei Templates (1)

Moodle LMS Jmol Plugin <= 6.1 - Cross-Site Scripting
MEDIUMby madrobot,ritikchaddha

References (3)

Core 3
Core References
Exploit, Third Party Advisory exploit technical-description
https://www.dionach.com/moodle-jmol-plugin-multiple-vulnerabilities/
Exploit, Third Party Advisory third-party-advisory exploit
https://www.exploit-db.com/exploits/46881
Third Party Advisory third-party-advisory
https://vulncheck.com/advisories/moodle-lms-jmol-plugin-xss

Scores

CVSS v3 6.1
EPSS 0.0013
EPSS Percentile 32.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

VulnCheck KEV 2025-06-23
CWE
CWE-79
Status published
Products (2)
geoffrowland/jmol < 6.1
Moodle/Jmol Plugin < 6.1
Published Jun 24, 2025
Tracked Since Feb 18, 2026