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CVE-2021-20186

Published: 28 January 2021

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.

Priority

Medium

Cvss 3 Severity Score

5.4

Score breakdown

Status

Package Release Status
moodle
Launchpad, Ubuntu, Debian
bionic Needed

focal Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

kinetic Does not exist

lunar Does not exist

trusty Does not exist

upstream
Released (3.10.1, 3.9.4, 3.8.7, 3.5.16)
xenial Needed

mantic Does not exist

Patches:
upstream: https://git.moodle.org/gw?p=moodle.git;a=commit;h=11e13d1629a960b431c7f0fbc64e504bd32ae01a

Severity score breakdown

Parameter Value
Base score 5.4
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction Required
Scope Changed
Confidentiality Low
Integrity impact Low
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N