---
title: "CVE-2019-3849\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2019-3849?format=md
keywords: index, follow
---

# CVE-2019-3849

Publication date 26 March 2019

Last updated 25 August 2025

---

Ubuntu priority

**Medium**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

## Cvss 3 Severity Score

**8.8 · High**

[Score breakdown](https://ubuntu.com/security/CVE-2019-3849?format=md#impact-score)

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## Description

A vulnerability was found in moodle before versions 3.6.3, 3.5.5 and 3.4.8.
Users could assign themselves an escalated role within courses or content
accessed via LTI, by modifying the request to the LTI publisher site.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| moodle | 18.10 cosmic | Not affected |
| 18.04 LTS bionic | Not affected |
| 16.04 LTS xenial | Not affected |
| 14.04 LTS trusty | Not in release |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

8.8 · High

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Network |
  | Attack complexity | Low |
  | Privileges required | Low |
  | User interaction | None |
  | Scope | Unchanged |
  | Confidentiality impact | High |
  | Integrity impact | High |
  | Availability impact | High |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 8.8 · High |
  | Exploitability score | - |
  | Impact score | - |

**Vector:** CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3849)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2019-3849)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2019-3849)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2019-3849)

### Other references

* <https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3849>
* <https://moodle.org/mod/forum/discuss.php?d=384012#p1547744>
* <http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-62702>
* <https://www.cve.org/CVERecord?id=CVE-2019-3849>