CVE-2019-14827 Information

Description

A vulnerability was found in Moodle where javaScript injection was possible in some Mustache templates via recursive rendering from contexts. Mustache helper tags that were included in template contexts were not being escaped before that context was injected into another Mustache helper which could result in script injection in some templates. This affects versions 3.7 to 3.7.1 3.6 to 3.6.5 3.5 to 3.5.7 and earlier unsupported versions.

CVSS Vector

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

Reference

https://moodle.org/mod/forum/discuss.php?d=391030 https://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-62284

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

CHANGED

Integrity Impact

LOW

Availability Impact

LOW

Base Score

NONE

Base Severity

6.1