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VULNERABILITIES

CVE-2021-20186 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.4 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://moodle.org/mod/forum/discuss.php?d=417170 CVEPatchVendor Advisory
https://moodle.org/mod/forum/discuss.php?d=417170 [email protected]PatchVendor Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')[email protected]

Affected Products

ProductVersions
moodle moodle
< 3.5.16
>= 3.8.0, < 3.8.7
>= 3.9.0, < 3.9.4
>= 3.10.0, < 3.10.1

CPE

  • cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

4 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2021-20186
NVD Published Date:
Jan 28, 2021
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2021-20186 Details - Not Deferred