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CVE-2023-5543: Improper Authorization

November 9, 2023 (updated November 18, 2023)

When duplicating a BigBlueButton activity, the original meeting ID was also duplicated instead of using a new ID for the new activity. This could provide unintended access to the original meeting.

References

  • git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-77795
  • bugzilla.redhat.com/show_bug.cgi?id=2243442
  • moodle.org/mod/forum/discuss.php?d=451584
  • nvd.nist.gov/vuln/detail/CVE-2023-5543

Code Behaviors & Features

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Affected versions

All versions starting from 4.0.0 before 4.0.11, all versions starting from 4.1.0 before 4.1.6, all versions starting from 4.2.0 before 4.2.3

Fixed versions

  • 4.0.11
  • 4.1.6
  • 4.2.3

Solution

Upgrade to versions 4.0.11, 4.1.6, 4.2.3 or above.

Impact 3.3 LOW

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

Learn more about CVSS

Source file

packagist/moodle/moodle/CVE-2023-5543.yml

Spotted a mistake? Edit the file on GitLab.

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