All vulnerabilities

Servers and applications

CVE-2021-36403

In Moodle, in some circumstances, email notifications of messages could have the link back to the original message hidden by HTML, which may pose a phishing risk.

Severity
Medium 5.3
Published
6 Mar 2023
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
3.9.8, 3.10.5, 3.11.1
Sources
NVD

Affected software

SoftwareAffected versions
MoodleServers and applications · cpe:a:moodle:moodle
  • Every version before 3.9.8
  • From 3.10.0 before 3.10.5
  • From 3.11.0 before 3.11.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-36403
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-36403