UBUNTU-CVE-2021-20186

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Source

https://ubuntu.com/security/CVE-2021-20186

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-20186.json

JSON Data

https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2021-20186

Upstream

CVE-2021-20186

Published

2021-01-28T19:15:00Z

Modified

2026-09-23T18:30:45Z

Severity

5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

It was found in Moodle before version 3.10.1, 3.9.4, 3.8.7 and 3.5.16 that if the TeX notation filter was enabled, additional sanitizing of TeX content was required to prevent the risk of stored XSS.

References

Affected packages

Ubuntu:Pro:16.04:LTS / moodle

Package

Name: moodle
Purl: pkg:deb/ubuntu/moodle?arch=source&distro=esm-apps-legacy%2Fxenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.7.9+dfsg-1

2.7.10+dfsg-1

2.7.11+dfsg-1

2.7.11+dfsg-2

2.7.12+dfsg-1

3.*

3.0.3+dfsg-0ubuntu1

3.0.3+dfsg-0ubuntu1+esm1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "moodle",
            "binary_version": "3.0.3+dfsg-0ubuntu1+esm1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-20186.json"

Ubuntu:Pro:18.04:LTS / moodle