What is the CVSS score of EUVD-2025-18970?

EUVD-2025-18970 has a CVSS 3.1 base score of 6.1 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.1%.

Which versions of PHP are affected by EUVD-2025-18970?

Organizations using the Moodle LMS Jmol plugin should be aware of moderate risk from CVE-2025-34032, a cross-site scripting vulnerability rated CVSS 6.1.

Is there a public PoC exploit available for EUVD-2025-18970?

Yes, a public proof-of-concept exploit is available for EUVD-2025-18970. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate EUVD-2025-18970?

Within 30 days: Identify affected systems running the Moodle LMS Jmol plugin and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

PHP EUVD-2025-18970

| CVE-2025-34032 MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2025-06-24 disclosure@vulncheck.com

PHP XSS Jmol Moodle

6.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.1 MEDIUM

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

EUVD ID Assigned

Mar 15, 2026 - 22:36 euvd

EUVD-2025-18970

Analysis Generated

Mar 15, 2026 - 22:36 vuln.today

PoC Detected

Nov 20, 2025 - 22:15 vuln.today

Public exploit code

CVE Published

Jun 24, 2025 - 01:15 nvd

MEDIUM 6.1

DescriptionCVE.org

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.

Analysis

Technical ContextAI

Cross-site scripting (XSS) allows injection of client-side scripts into web pages viewed by other users due to insufficient output encoding.

RemediationAI

Encode all user-supplied output contextually (HTML, JS, URL). Implement Content Security Policy (CSP) headers. Use HTTPOnly and Secure cookie flags.

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EUVD-2025-18970 vulnerability details – vuln.today

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PHP EUVD-2025-18970

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

Analysis

Technical ContextAI

RemediationAI

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External POC / Exploit Code