# CVE-2025-34031: Moodle LMS Jmol Plugin Path Traversal

> Unauthenticated attackers can read arbitrary files, including database credentials, via path traversal in the Moodle Jmol plugin.

- **Severity:** High 8.7 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 24 Jun 2025
- **Updated:** 14 May 2026
- **Also known as:** GHSA-mf8r-552p-3grv

## What is CVE-2025-34031?

CVE-2025-34031 is a high-severity path traversal vulnerability in Moodle Jmol Plugin, published on 24 Jun 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A path traversal vulnerability exists in the Moodle LMS Jmol plugin version 6.1 and prior via the query parameter in jsmol.php. The script directly passes user input to the file_get_contents() function without proper validation, allowing attackers to read arbitrary files from the server's filesystem by crafting a malicious query value. This vulnerability can be exploited without authentication and may expose sensitive configuration data, including database credentials. Exploitation evidence was observed by the Shadowserver Foundation on 2025-02-02 UTC.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2025-34031?

It affects 1 product.


Products: Geoffrowland Jmol.

## How do I fix CVE-2025-34031?

No fix has been published for CVE-2025-34031 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-34031 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-34031 exists.

Public exploit code:

- Moodle Jmol Filter 6.1 - Local File Inclusion (nuclei): http/cves/2025/CVE-2025-34031.yaml

## Other vulnerabilities in Moodle Jmol Plugin

- [CVE-2025-34032](https://insights.sbomify.com/CVE-2025-34032/): Moodle LMS Jmol Plugin Cross-site Scripting (XSS) (medium 5.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-34031 and fix it if it is affected.

What it is: CVE-2025-34031 is a high-severity path traversal vulnerability in Moodle Jmol Plugin, published on 24 Jun 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-34031 exists.

Affected product: Moodle Jmol Plugin. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-34031/ (Markdown: https://insights.sbomify.com/CVE-2025-34031/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-34031
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-34031
- OSV: https://osv.dev/vulnerability/CVE-2025-34031

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-34031/
Summaries are generated and may contain mistakes; the official description above is the record.