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CVE-2021-20186

nvd nist
Published: Jan 28, 2021Modified: Jun 17, 2026

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5.4
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Exploitability: 2.3 / Impact: 2.7
Source: NVD

Description

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.

Affected (4)

Products: Moodle: Moodle
Moodle
1 product
Moodle
Configuration A
4 vulnerable
Vulnerable SoftwareAffected Versions
Moodle
Moodle
Before 3.5.16
Moodle
From 3.10.0 to 3.10.1
Moodle
From 3.8.0 to 3.8.7
Moodle
From 3.9.0 to 3.9.4

Related CWEs

CWE-79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

References (2)

Source: secalert@redhat.com
PatchVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchVendor Advisory

Timeline

No history available yet.