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  5. CVE-2021-20281

CVE-2021-20281: Information Exposure

March 15, 2021 (updated November 7, 2023)

It was possible for some users without permission to view other users’ full names to do so via the online users block in moodle

References

  • bugzilla.redhat.com/show_bug.cgi?id=1939041
  • moodle.org/mod/forum/discuss.php?d=419652
  • nvd.nist.gov/vuln/detail/CVE-2021-20281

Code Behaviors & Features

Detect and mitigate CVE-2021-20281 with GitLab Dependency Scanning

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Affected versions

All versions starting from 3.5.0 before 3.5.17, all versions starting from 3.8.0 before 3.8.8, all versions starting from 3.9.0 before 3.9.5, all versions starting from 3.10.0 before 3.10.2

Fixed versions

  • 3.5.17
  • 3.8.8
  • 3.9.5
  • 3.10.2

Solution

Upgrade to versions 3.5.17, 3.8.8, 3.9.5, 3.10.2 or above.

Impact 5.3 MEDIUM

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

Learn more about CVSS

Weakness

  • CWE-863: Incorrect Authorization

Source file

packagist/moodle/moodle/CVE-2021-20281.yml

Spotted a mistake? Edit the file on GitLab.

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