UpHeron
All vulnerabilities

Servers and applications

CVE-2021-20186

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.

Severity
Medium 5.4
Published
28 Jan 2021
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
3.5.16, 3.8.7, 3.9.4, 3.10.1
Sources
NVD

Affected software

SoftwareAffected versions
MoodleServers and applications · cpe:a:moodle:moodle
  • Every version before 3.5.16
  • From 3.8.0 before 3.8.7
  • From 3.9.0 before 3.9.4
  • From 3.10.0 before 3.10.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-20186
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-20186